<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:33bb6547-2cdb-43c1-bed1-a86d6875a921,g:054d106a-1286-4f86-bcf6-f16ffd2163ca-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:source="http://www.1stsource.com/20211231" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.1stsource.com/20211231">
  <xs:import namespace="http://fasb.org/srt/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2021q4" schemaLocation="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="source-20211231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="source-20211231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="source-20211231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="source-20211231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.1stsource.com/role/CoverPage">
        <link:definition>0001001 - Document - Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AuditInformation" roleURI="http://www.1stsource.com/role/AuditInformation">
        <link:definition>0002002 - Document - Audit Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITION" roleURI="http://www.1stsource.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITION">
        <link:definition>1001003 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFINCOME" roleURI="http://www.1stsource.com/role/CONSOLIDATEDSTATEMENTSOFINCOME">
        <link:definition>1002004 - Statement - CONSOLIDATED STATEMENTS OF INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" roleURI="http://www.1stsource.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME">
        <link:definition>1003005 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITY" roleURI="http://www.1stsource.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITY">
        <link:definition>1004006 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFCASHFLOW" roleURI="http://www.1stsource.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOW">
        <link:definition>1005007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOW</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFCASHFLOWParenthetical" roleURI="http://www.1stsource.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWParenthetical">
        <link:definition>1106101 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOW (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPolicies" roleURI="http://www.1stsource.com/role/AccountingPolicies">
        <link:definition>2101102 - Disclosure - Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesPolicies" roleURI="http://www.1stsource.com/role/AccountingPoliciesPolicies">
        <link:definition>2202201 - Disclosure - Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesDetails" roleURI="http://www.1stsource.com/role/AccountingPoliciesDetails">
        <link:definition>2403401 - Disclosure - Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RecentAccountingPronouncements" roleURI="http://www.1stsource.com/role/RecentAccountingPronouncements">
        <link:definition>2104103 - Disclosure - Recent Accounting Pronouncements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesAvailableForSale" roleURI="http://www.1stsource.com/role/InvestmentSecuritiesAvailableForSale">
        <link:definition>2105104 - Disclosure - Investment Securities Available-For-Sale</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesAvailableForSaleTables" roleURI="http://www.1stsource.com/role/InvestmentSecuritiesAvailableForSaleTables">
        <link:definition>2306301 - Disclosure - Investment Securities Available-For-Sale (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesAvailableForSaleDetails" roleURI="http://www.1stsource.com/role/InvestmentSecuritiesAvailableForSaleDetails">
        <link:definition>2407402 - Disclosure - Investment Securities Available-For-Sale (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesAvailableForSaleDetails2" roleURI="http://www.1stsource.com/role/InvestmentSecuritiesAvailableForSaleDetails2">
        <link:definition>2408403 - Disclosure - Investment Securities Available-For-Sale (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancings" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancings">
        <link:definition>2109105 - Disclosure - Loan and Lease Financings</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancingsTables" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancingsTables">
        <link:definition>2310302 - Disclosure - Loan and Lease Financings (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancingsDetails" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancingsDetails">
        <link:definition>2411404 - Disclosure - Loan and Lease Financings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancingsDetails2" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancingsDetails2">
        <link:definition>2412405 - Disclosure - Loan and Lease Financings (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancingsDetails3" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancingsDetails3">
        <link:definition>2413406 - Disclosure - Loan and Lease Financings (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancingsDetails4" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancingsDetails4">
        <link:definition>2414407 - Disclosure - Loan and Lease Financings (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandLeaseFinancingsDetails5" roleURI="http://www.1stsource.com/role/LoanandLeaseFinancingsDetails5">
        <link:definition>2415408 - Disclosure - Loan and Lease Financings (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AllowanceforCreditLosses" roleURI="http://www.1stsource.com/role/AllowanceforCreditLosses">
        <link:definition>2116106 - Disclosure - Allowance for Credit Losses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AllowanceforCreditLossesTables" roleURI="http://www.1stsource.com/role/AllowanceforCreditLossesTables">
        <link:definition>2317303 - Disclosure - Allowance for Credit Losses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AllowanceforCreditLossesDetails" roleURI="http://www.1stsource.com/role/AllowanceforCreditLossesDetails">
        <link:definition>2418409 - Disclosure - Allowance for Credit Losses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AllowanceforCreditLossesDetails2" roleURI="http://www.1stsource.com/role/AllowanceforCreditLossesDetails2">
        <link:definition>2419410 - Disclosure - Allowance for Credit Losses (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseInvestments" roleURI="http://www.1stsource.com/role/LeaseInvestments">
        <link:definition>2120107 - Disclosure - Lease Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseInvestmentsTables" roleURI="http://www.1stsource.com/role/LeaseInvestmentsTables">
        <link:definition>2321304 - Disclosure - Lease Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseInvestmentsDetails" roleURI="http://www.1stsource.com/role/LeaseInvestmentsDetails">
        <link:definition>2422411 - Disclosure - Lease Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseInvestmentsDetails2" roleURI="http://www.1stsource.com/role/LeaseInvestmentsDetails2">
        <link:definition>2423412 - Disclosure - Lease Investments (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PremisesandEquipment" roleURI="http://www.1stsource.com/role/PremisesandEquipment">
        <link:definition>2124108 - Disclosure - Premises and Equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PremisesandEquipmentTables" roleURI="http://www.1stsource.com/role/PremisesandEquipmentTables">
        <link:definition>2325305 - Disclosure - Premises and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PremisesandEquipmentDetails" roleURI="http://www.1stsource.com/role/PremisesandEquipmentDetails">
        <link:definition>2426413 - Disclosure - Premises and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MortgageServicingRights" roleURI="http://www.1stsource.com/role/MortgageServicingRights">
        <link:definition>2127109 - Disclosure - Mortgage Servicing Rights</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MortgageServicingRightsTables" roleURI="http://www.1stsource.com/role/MortgageServicingRightsTables">
        <link:definition>2328306 - Disclosure - Mortgage Servicing Rights (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MortgageServicingRightsDetails" roleURI="http://www.1stsource.com/role/MortgageServicingRightsDetails">
        <link:definition>2429414 - Disclosure - Mortgage Servicing Rights (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MortgageServicingRightsDetails2" roleURI="http://www.1stsource.com/role/MortgageServicingRightsDetails2">
        <link:definition>2430415 - Disclosure - Mortgage Servicing Rights (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsandGoodwill" roleURI="http://www.1stsource.com/role/IntangibleAssetsandGoodwill">
        <link:definition>2131110 - Disclosure - Intangible Assets and Goodwill</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsandGoodwillTables" roleURI="http://www.1stsource.com/role/IntangibleAssetsandGoodwillTables">
        <link:definition>2332307 - Disclosure - Intangible Assets and Goodwill (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsandGoodwillDetails" roleURI="http://www.1stsource.com/role/IntangibleAssetsandGoodwillDetails">
        <link:definition>2433416 - Disclosure - Intangible Assets and Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IntangibleAssetsandGoodwillDetails2" roleURI="http://www.1stsource.com/role/IntangibleAssetsandGoodwillDetails2">
        <link:definition>2434417 - Disclosure - Intangible Assets and Goodwill (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Deposits" roleURI="http://www.1stsource.com/role/Deposits">
        <link:definition>2135111 - Disclosure - Deposits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DepositsTables" roleURI="http://www.1stsource.com/role/DepositsTables">
        <link:definition>2336308 - Disclosure - Deposits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DepositsDetails" roleURI="http://www.1stsource.com/role/DepositsDetails">
        <link:definition>2437418 - Disclosure - Deposits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BorrowedFundsandMandatorilyRedeemableSecurities" roleURI="http://www.1stsource.com/role/BorrowedFundsandMandatorilyRedeemableSecurities">
        <link:definition>2138112 - Disclosure - Borrowed Funds and Mandatorily Redeemable Securities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BorrowedFundsandMandatorilyRedeemableSecuritiesTables" roleURI="http://www.1stsource.com/role/BorrowedFundsandMandatorilyRedeemableSecuritiesTables">
        <link:definition>2339309 - Disclosure - Borrowed Funds and Mandatorily Redeemable Securities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BorrowedFundsandMandatorilyRedeemableSecuritiesDetails" roleURI="http://www.1stsource.com/role/BorrowedFundsandMandatorilyRedeemableSecuritiesDetails">
        <link:definition>2440419 - Disclosure - Borrowed Funds and Mandatorily Redeemable Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BorrowedFundsandMandatorilyRedeemableSecuritiesDetails2" roleURI="http://www.1stsource.com/role/BorrowedFundsandMandatorilyRedeemableSecuritiesDetails2">
        <link:definition>2441420 - Disclosure - Borrowed Funds and Mandatorily Redeemable Securities (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="VariableInterestEntities" roleURI="http://www.1stsource.com/role/VariableInterestEntities">
        <link:definition>2142113 - Disclosure - Variable Interest Entities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="VariableInterestEntitiesTables" roleURI="http://www.1stsource.com/role/VariableInterestEntitiesTables">
        <link:definition>2343310 - Disclosure - Variable Interest Entities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="VariableInterestEntitiesDetails" roleURI="http://www.1stsource.com/role/VariableInterestEntitiesDetails">
        <link:definition>2444421 - Disclosure - Variable Interest Entities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="VariableInterestEntitiesDetails2" roleURI="http://www.1stsource.com/role/VariableInterestEntitiesDetails2">
        <link:definition>2445422 - Disclosure - Variable Interest Entities (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShare" roleURI="http://www.1stsource.com/role/EarningsPerShare">
        <link:definition>2146114 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://www.1stsource.com/role/EarningsPerShareTables">
        <link:definition>2347311 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareDetails" roleURI="http://www.1stsource.com/role/EarningsPerShareDetails">
        <link:definition>2448423 - Disclosure - Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareDetails2" roleURI="http://www.1stsource.com/role/EarningsPerShareDetails2">
        <link:definition>2449424 - Disclosure - Earnings Per Share (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncome" roleURI="http://www.1stsource.com/role/AccumulatedOtherComprehensiveIncome">
        <link:definition>2150115 - Disclosure - Accumulated Other Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeTables" roleURI="http://www.1stsource.com/role/AccumulatedOtherComprehensiveIncomeTables">
        <link:definition>2351312 - Disclosure - Accumulated Other Comprehensive Income (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeDetails" roleURI="http://www.1stsource.com/role/AccumulatedOtherComprehensiveIncomeDetails">
        <link:definition>2452425 - Disclosure - Accumulated Other Comprehensive Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlans" roleURI="http://www.1stsource.com/role/EmployeeBenefitPlans">
        <link:definition>2153116 - Disclosure - Employee Benefit Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlansDetails" roleURI="http://www.1stsource.com/role/EmployeeBenefitPlansDetails">
        <link:definition>2454426 - Disclosure - Employee Benefit Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensation" roleURI="http://www.1stsource.com/role/StockBasedCompensation">
        <link:definition>2155117 - Disclosure - Stock Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationTables" roleURI="http://www.1stsource.com/role/StockBasedCompensationTables">
        <link:definition>2356313 - Disclosure - Stock Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationDetails" roleURI="http://www.1stsource.com/role/StockBasedCompensationDetails">
        <link:definition>2457427 - Disclosure - Stock Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.1stsource.com/role/IncomeTaxes">
        <link:definition>2158118 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.1stsource.com/role/IncomeTaxesTables">
        <link:definition>2359314 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://www.1stsource.com/role/IncomeTaxesDetails">
        <link:definition>2460428 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails2" roleURI="http://www.1stsource.com/role/IncomeTaxesDetails2">
        <link:definition>2461429 - Disclosure - Income Taxes (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRisk" roleURI="http://www.1stsource.com/role/ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRisk">
        <link:definition>2162119 - Disclosure - Contingent Liabilities, Commitments, and Financial Instruments with Off-Balance-Sheet Risk</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskTables" roleURI="http://www.1stsource.com/role/ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskTables">
        <link:definition>2363315 - Disclosure - Contingent Liabilities, Commitments, and Financial Instruments with Off-Balance-Sheet Risk (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails" roleURI="http://www.1stsource.com/role/ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails">
        <link:definition>2464430 - Disclosure - Contingent Liabilities, Commitments, and Financial Instruments with Off-Balance-Sheet Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails2" roleURI="http://www.1stsource.com/role/ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails2">
        <link:definition>2465431 - Disclosure - Contingent Liabilities, Commitments, and Financial Instruments with Off-Balance-Sheet Risk (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails2_1" roleURI="http://www.1stsource.com/role/ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails2_1">
        <link:definition>2465431 - Disclosure - Contingent Liabilities, Commitments, and Financial Instruments with Off-Balance-Sheet Risk (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails3" roleURI="http://www.1stsource.com/role/ContingentLiabilitiesCommitmentsandFinancialInstrumentswithOffBalanceSheetRiskDetails3">
        <link:definition>2466432 - Disclosure - Contingent Liabilities, Commitments, and Financial Instruments with Off-Balance-Sheet Risk (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstruments" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstruments">
        <link:definition>2167120 - Disclosure - Derivative Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsTables" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstrumentsTables">
        <link:definition>2368316 - Disclosure - Derivative Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsDetails" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstrumentsDetails">
        <link:definition>2469433 - Disclosure - Derivative Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsDetails2" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstrumentsDetails2">
        <link:definition>2470434 - Disclosure - Derivative Financial Instruments (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsDetails3" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstrumentsDetails3">
        <link:definition>2471435 - Disclosure - Derivative Financial Instruments (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsDetails4" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstrumentsDetails4">
        <link:definition>2472436 - Disclosure - Derivative Financial Instruments (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsDetails5" roleURI="http://www.1stsource.com/role/DerivativeFinancialInstrumentsDetails5">
        <link:definition>2473437 - Disclosure - Derivative Financial Instruments (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMatters" roleURI="http://www.1stsource.com/role/RegulatoryMatters">
        <link:definition>2174121 - Disclosure - Regulatory Matters</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersTables" roleURI="http://www.1stsource.com/role/RegulatoryMattersTables">
        <link:definition>2375317 - Disclosure - Regulatory Matters (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryMattersDetails" roleURI="http://www.1stsource.com/role/RegulatoryMattersDetails">
        <link:definition>2476438 - Disclosure - Regulatory Matters (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.1stsource.com/role/FairValueMeasurements">
        <link:definition>2177122 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.1stsource.com/role/FairValueMeasurementsTables">
        <link:definition>2378318 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails">
        <link:definition>2479439 - Disclosure - Fair Value Measurements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails2" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails2">
        <link:definition>2480440 - Disclosure - Fair Value Measurements (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails3" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails3">
        <link:definition>2481441 - Disclosure - Fair Value Measurements (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails4" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails4">
        <link:definition>2482442 - Disclosure - Fair Value Measurements (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails5" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails5">
        <link:definition>2483443 - Disclosure - Fair Value Measurements (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails6" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails6">
        <link:definition>2484444 - Disclosure - Fair Value Measurements (Details 6)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails7" roleURI="http://www.1stsource.com/role/FairValueMeasurementsDetails7">
        <link:definition>2485445 - Disclosure - Fair Value Measurements (Details 7)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="A1stSourceCorporationParentCompanyOnlyFinancialInformation" roleURI="http://www.1stsource.com/role/A1stSourceCorporationParentCompanyOnlyFinancialInformation">
        <link:definition>2186123 - Disclosure - 1st Source Corporation (Parent Company Only) Financial Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="A1stSourceCorporationParentCompanyOnlyFinancialInformationTables" roleURI="http://www.1stsource.com/role/A1stSourceCorporationParentCompanyOnlyFinancialInformationTables">
        <link:definition>2387319 - Disclosure - 1st Source Corporation (Parent Company Only) Financial Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="A1stSourceCorporationParentCompanyOnlyFinancialInformationDetails" roleURI="http://www.1stsource.com/role/A1stSourceCorporationParentCompanyOnlyFinancialInformationDetails">
        <link:definition>2488446 - Disclosure - 1st Source Corporation (Parent Company Only) Financial Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="A1stSourceCorporationParentCompanyOnlyFinancialInformationDetails2" roleURI="http://www.1stsource.com/role/A1stSourceCorporationParentCompanyOnlyFinancialInformationDetails2">
        <link:definition>2489447 - Disclosure - 1st Source Corporation (Parent Company Only) Financial Information (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="A1stSourceCorporationParentCompanyOnlyFinancialInformationDetails3" roleURI="http://www.1stsource.com/role/A1stSourceCorporationParentCompanyOnlyFinancialInformationDetails3">
        <link:definition>2490448 - Disclosure - 1st Source Corporation (Parent Company Only) Financial Information (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="source_TierOneRiskBasedCapitalRequiredforCapitalAdequacywithCapitalBuffertoRiskWeightedAssets" abstract="false" name="TierOneRiskBasedCapitalRequiredforCapitalAdequacywithCapitalBuffertoRiskWeightedAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="source_SubordinatedNoteIssuedinJune2007Member" abstract="true" name="SubordinatedNoteIssuedinJune2007Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ServicingAssetAtAmortizedValueExpectedAmortizationAbstract" abstract="true" name="ServicingAssetAtAmortizedValueExpectedAmortizationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_DefinedContributionPlanDiscretionaryEmployerMatchLevelTwo" abstract="false" name="DefinedContributionPlanDiscretionaryEmployerMatchLevelTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardPricePerShare" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="source_VariableInterestEntities" abstract="true" name="VariableInterestEntities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_ScheduleofComponentsofLeaseInvestmentsbyCategoryTableTextBlock" abstract="false" name="ScheduleofComponentsofLeaseInvestmentsbyCategoryTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_CommercialAndAgriculturalLoansMember" abstract="true" name="CommercialAndAgriculturalLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LetterofCreditTerm" abstract="false" name="LetterofCreditTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_OtherShortTermDebtMember" abstract="true" name="OtherShortTermDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LiabilityForEstimatedLossesOnRepurchaseAndIndemnification" abstract="false" name="LiabilityForEstimatedLossesOnRepurchaseAndIndemnification" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_Numberofsignificantlesseeleasesthathavenotyetcommenced" abstract="false" name="Numberofsignificantlesseeleasesthathavenotyetcommenced" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_PaymentsForProceedsFromOtherInvestments" abstract="false" name="PaymentsForProceedsFromOtherInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_PPPLoanBalance" abstract="false" name="PPPLoanBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_InterestExpenseLongTermDebtAndMandatorilyRedeemableSecurities" abstract="false" name="InterestExpenseLongTermDebtAndMandatorilyRedeemableSecurities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ScheduleOfDebtAndMandatorilyRedeemableSecuritiesTable" abstract="true" name="ScheduleOfDebtAndMandatorilyRedeemableSecuritiesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="source_BusinessDevelopmentAndMarketingExpense" abstract="false" name="BusinessDevelopmentAndMarketingExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_CommonStockEarningsLossBasic" abstract="false" name="CommonStockEarningsLossBasic" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_IncreaseInInterestIncomeHadNonaccrualLoansAndLeasesBeenCurrent" abstract="false" name="IncreaseInInterestIncomeHadNonaccrualLoansAndLeasesBeenCurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ScheduleOfAvailableForSaleDebtSecuritiesLineItems" abstract="true" name="ScheduleOfAvailableForSaleDebtSecuritiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_PeriodOfAmortizationToReachEquityPositionInCollateral" abstract="false" name="PeriodOfAmortizationToReachEquityPositionInCollateral" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_InternallyAssignedGrade1To6Member" abstract="true" name="InternallyAssignedGrade1To6Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_OperatingLeaseRightofUseAssetAmortization" abstract="false" name="OperatingLeaseRightofUseAssetAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_DefinedBenefitAndContributionPlanDisclosureLineItems" abstract="true" name="DefinedBenefitAndContributionPlanDisclosureLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_ForwardContractsMortgageLoanMember" abstract="true" name="ForwardContractsMortgageLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ExecutiveIncentivePlanMember" abstract="true" name="ExecutiveIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_CommonEquityTier1CapitaRequiredFormMinimumCapitalAdequacyWithCapitalBuffer" abstract="false" name="CommonEquityTier1CapitaRequiredFormMinimumCapitalAdequacyWithCapitalBuffer" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExecutiveStockAwardPlans" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExecutiveStockAwardPlans" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_AppraisalsValuationTechniqueMember" abstract="true" name="AppraisalsValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_SolarLoansMember" abstract="true" name="SolarLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_TierOneRiskBasedCapitalRequiredforCapitalAdequacywithCapitalBuffer" abstract="false" name="TierOneRiskBasedCapitalRequiredforCapitalAdequacywithCapitalBuffer" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_FinancingReceivableModificationsSubsequentPaymentDefaultPeriodPastDue" abstract="false" name="FinancingReceivableModificationsSubsequentPaymentDefaultPeriodPastDue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_StockOwnershipAndProfitSharingPlanMember" abstract="true" name="StockOwnershipAndProfitSharingPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LoanAndLeaseCollectionAndRepossessionExpense" abstract="false" name="LoanAndLeaseCollectionAndRepossessionExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ContractualMaturitiesTimeDeposits250000orMoreSixMonthsThrough12Months" abstract="false" name="ContractualMaturitiesTimeDeposits250000orMoreSixMonthsThrough12Months" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_AuctionValuesValuationTechniqueMember" abstract="true" name="AuctionValuesValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ImpairedLoansReceivableFairValueDisclosure" abstract="false" name="ImpairedLoansReceivableFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_CapitalRequiredforCapitalAdequacywithCapitalBuffertoRiskWeightedAssets" abstract="false" name="CapitalRequiredforCapitalAdequacywithCapitalBuffertoRiskWeightedAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="source_SummaryOfSignificantAccountingPoliciesTable" abstract="true" name="SummaryOfSignificantAccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="source_FederalTaxCreditsRecognizedInTaxExpense" abstract="false" name="FederalTaxCreditsRecognizedInTaxExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_LoansReceivableDeferredIncomePPPLoans" abstract="false" name="LoansReceivableDeferredIncomePPPLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_MediumAndHeavyDutyTruckMember" abstract="true" name="MediumAndHeavyDutyTruckMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LongTermDebtAndMandatorilyRedeemableSecurities" abstract="false" name="LongTermDebtAndMandatorilyRedeemableSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ScheduleOfSubordinatedNotesPertainingToCapitalTrustsTableTextBlock" abstract="false" name="ScheduleOfSubordinatedNotesPertainingToCapitalTrustsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_LongTermDebtAndMandatorilyRedeemableSecuritiesLineItems" abstract="true" name="LongTermDebtAndMandatorilyRedeemableSecuritiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_NumberOfDomesticAircraftLoanPools" abstract="false" name="NumberOfDomesticAircraftLoanPools" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_ImpairedLoansMember" abstract="true" name="ImpairedLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LesseeOperatingLeaseWeightedAverageRemainingTermDiscountRateandSupplementalCashFlowsInformationTableTextBlock" abstract="false" name="LesseeOperatingLeaseWeightedAverageRemainingTermDiscountRateandSupplementalCashFlowsInformationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_MeasurementInputDiscountForLackofMarketabilityandCurrentConditionsMember" abstract="true" name="MeasurementInputDiscountForLackofMarketabilityandCurrentConditionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_OperatingLeaseTerm" abstract="false" name="OperatingLeaseTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_NetGainOnSaleOfOtherRealEstateAndRepossessions" abstract="false" name="NetGainOnSaleOfOtherRealEstateAndRepossessions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_AccruedIncomeAndOtherAssetsFairValueDisclosure" abstract="false" name="AccruedIncomeAndOtherAssetsFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_PaymentsForProceedsFromEquipmentOwnedUnderOperatingLeases" abstract="false" name="PaymentsForProceedsFromEquipmentOwnedUnderOperatingLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ServicingAssetCarryingValueNet" abstract="false" name="ServicingAssetCarryingValueNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_LoansAndLeasesReceivableNumberOfMethodsToAssessCreditRisk" abstract="false" name="LoansAndLeasesReceivableNumberOfMethodsToAssessCreditRisk" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_AircraftMember" abstract="true" name="AircraftMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_MortgageBankingIncome" abstract="false" name="MortgageBankingIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ProceedsFromDirectFinanceLeasePayments" abstract="false" name="ProceedsFromDirectFinanceLeasePayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_RestrictedStockAwardPlan1982Member" abstract="true" name="RestrictedStockAwardPlan1982Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_FinancingReceivableNonTroubledDebtRestructuringModificationsAmount" abstract="false" name="FinancingReceivableNonTroubledDebtRestructuringModificationsAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_SustainedPerformancePeriodRequiredForPerformingStatus" abstract="false" name="SustainedPerformancePeriodRequiredForPerformingStatus" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_Lessordirectfinanceleaseunearnedincome" abstract="false" name="Lessordirectfinanceleaseunearnedincome" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_PercentageOfPrincipalBalanceThatMayBeRepurchasedOfDelinquentMortgageLoan" abstract="false" name="PercentageOfPrincipalBalanceThatMayBeRepurchasedOfDelinquentMortgageLoan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_EquityMethodInvestmentOwnershipPercentageMaximum" abstract="false" name="EquityMethodInvestmentOwnershipPercentageMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_ServicingAssetAtAmortizedValueExpectedAmortizationCurrent" abstract="false" name="ServicingAssetAtAmortizedValueExpectedAmortizationCurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_DirectFinanceLeaseTerm" abstract="false" name="DirectFinanceLeaseTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_IncomeRelatedtoReimbursementsfromLesseesonOperatingLeases" abstract="false" name="IncomeRelatedtoReimbursementsfromLesseesonOperatingLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_MandatorilyRedeemableSecurities" abstract="false" name="MandatorilyRedeemableSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_DefinedContributionPlanNumberofSharesofEquitySecuritiesIssuedbyEmployerandRelatedPartiesIncludedinPlanAssets" abstract="false" name="DefinedContributionPlanNumberofSharesofEquitySecuritiesIssuedbyEmployerandRelatedPartiesIncludedinPlanAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="source_MinimumLeaseLiabilityforCapitalization" abstract="false" name="MinimumLeaseLiabilityforCapitalization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesGranted" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="source_ScheduleOfMaturitiesOfTimeDepositsNoncurrentTableTextBlock" abstract="false" name="ScheduleOfMaturitiesOfTimeDepositsNoncurrentTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_ShortTermDebtTerm" abstract="false" name="ShortTermDebtTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_MandatorilyRedeemableSecuritiesAbstract" abstract="true" name="MandatorilyRedeemableSecuritiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_PercentageFairValueTesttoDetermineOperatingorFinanceLease" abstract="false" name="PercentageFairValueTesttoDetermineOperatingorFinanceLease" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionAmount" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_PPPLoanOriginations" abstract="false" name="PPPLoanOriginations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_IncreaseDecreaseinSavingandDemandDeposits" abstract="false" name="IncreaseDecreaseinSavingandDemandDeposits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_DefinedContributionPlanEmployerDiscretionaryContributionPercentage" abstract="false" name="DefinedContributionPlanEmployerDiscretionaryContributionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_MaturityDateOfJuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust" abstract="false" name="MaturityDateOfJuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:dateItemType"/>
  <xs:element id="source_DeferredTaxAssetsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_SuppliesAndCommunicationExpense" abstract="false" name="SuppliesAndCommunicationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_SpecialtyVehicleMember" abstract="true" name="SpecialtyVehicleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_DepositLiabilitiesDisclosureTextBlock" abstract="false" name="DepositLiabilitiesDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_CashAndDueFromBanksExcludingFederalHomeLoanBankCashFairValueDisclosure" abstract="false" name="CashAndDueFromBanksExcludingFederalHomeLoanBankCashFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ServicingAssetAtAmortizedValueExpectedAmortizationInYearFour" abstract="false" name="ServicingAssetAtAmortizedValueExpectedAmortizationInYearFour" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_InternallyAssignedGrade7To12Member" abstract="true" name="InternallyAssignedGrade7To12Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ExpectedLifeOfUnderlyingCollateral" abstract="false" name="ExpectedLifeOfUnderlyingCollateral" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_ServicingAssetAtAmortizedValueExpectedAmortizationInYearFive" abstract="false" name="ServicingAssetAtAmortizedValueExpectedAmortizationInYearFive" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ServicingAssetAtAmortizedValueExpectedAmortizationInYearThree" abstract="false" name="ServicingAssetAtAmortizedValueExpectedAmortizationInYearThree" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_FinancingReceivableAllowanceForCreditLossesNetWriteOffs" abstract="false" name="FinancingReceivableAllowanceForCreditLossesNetWriteOffs" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ConstructionEquipmentFinancingMember" abstract="true" name="ConstructionEquipmentFinancingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_DefinedContributionPlanEmployeeDeferralPercentageVested" abstract="false" name="DefinedContributionPlanEmployeeDeferralPercentageVested" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_ScheduleOfMaturitiesOfTimeDepositsCurrentTableTextBlock" abstract="false" name="ScheduleOfMaturitiesOfTimeDepositsCurrentTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_DeferredTaxLiabilitiesTaxAdvantagedPartnerships" abstract="false" name="DeferredTaxLiabilitiesTaxAdvantagedPartnerships" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_CommonEquityTier1CapitalRequiredForCapitalAdequacyWithCapitalBuffertoRiskWeightedAssets" abstract="false" name="CommonEquityTier1CapitalRequiredForCapitalAdequacyWithCapitalBuffertoRiskWeightedAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="source_CurrentExpectedCreditLossesInitialLossForecastTerm" abstract="false" name="CurrentExpectedCreditLossesInitialLossForecastTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_ScheduleofFutureMinimumLeasePaymentsforDirectFinancingandOperatingLeasesTableTextBlock" abstract="false" name="ScheduleofFutureMinimumLeasePaymentsforDirectFinancingandOperatingLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_TradePublicationsAndAuctionValuesValuationTechniqueMember" abstract="true" name="TradePublicationsAndAuctionValuesValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_AssetImpairmentRecoveries" abstract="false" name="AssetImpairmentRecoveries" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_MortgageBankingIncomeMember" abstract="true" name="MortgageBankingIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_CollateralBasedMeasurementsValuationTechniqueMember" abstract="true" name="CollateralBasedMeasurementsValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsThroughSixMonths" abstract="false" name="ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsThroughSixMonths" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_MinimumInitialLeaseTermforRecordingRightofUseAssetandLeaseLiability" abstract="false" name="MinimumInitialLeaseTermforRecordingRightofUseAssetandLeaseLiability" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_DefinedContributionPlanRequisitePeriodOfServiceToBecomeEligible" abstract="false" name="DefinedContributionPlanRequisitePeriodOfServiceToBecomeEligible" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_DeferredTaxAssetsCapitalizedLoanCosts" abstract="false" name="DeferredTaxAssetsCapitalizedLoanCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ServicingAssetFairValueExceedingCarryingValueAmount" abstract="false" name="ServicingAssetFairValueExceedingCarryingValueAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesValueOfSharesToBePurchased" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesValueOfSharesToBePurchased" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_TransferOtherRealEstateAndRepossessedAssets" abstract="false" name="TransferOtherRealEstateAndRepossessedAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_OtherLongTermDebtMember" abstract="true" name="OtherLongTermDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_NumberOfReportableUnitsUsedForGoodwillAllocation" abstract="false" name="NumberOfReportableUnitsUsedForGoodwillAllocation" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardPremiumFromMarketPriceOfferingDate" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPremiumFromMarketPriceOfferingDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_EmployeeStockPurchasePlanOfferingJune2018ThroughJune2020Member" abstract="true" name="EmployeeStockPurchasePlanOfferingJune2018ThroughJune2020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_DefinedContributionPlanDiscretionaryEmployerMatchEmployeeContributionLevelTwo" abstract="false" name="DefinedContributionPlanDiscretionaryEmployerMatchEmployeeContributionLevelTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_NumberOfFederalHomeLoanBankBorrowingFixedRateNote" abstract="false" name="NumberOfFederalHomeLoanBankBorrowingFixedRateNote" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_ContractualMaturitiesTimeDeposits250000orMoreAbstract" abstract="true" name="ContractualMaturitiesTimeDeposits250000orMoreAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_TradePublicationsValuationTechniqueMember" abstract="true" name="TradePublicationsValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ImpairedLoansMeasurementInput" abstract="false" name="ImpairedLoansMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="source_SummaryOfSignificantAccountingPoliciesLineItems" abstract="true" name="SummaryOfSignificantAccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_ScheduleoftheComponentsofIncomefromDirectFinanceandOperatingLeaseEquipmentTableTextBlock" abstract="false" name="ScheduleoftheComponentsofIncomefromDirectFinanceandOperatingLeaseEquipmentTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_AutoAndLightTruckMember" abstract="true" name="AutoAndLightTruckMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantRollForward" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForGrantRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_TaxBenefitRealizedOnSettlementPercentage" abstract="false" name="TaxBenefitRealizedOnSettlementPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_FinancingReceivableRecordedInvestmentAccruingLoans" abstract="false" name="FinancingReceivableRecordedInvestmentAccruingLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_DefinedContributionPlanDiscretionaryEmployerMatchEmployeeContributionLevelOne" abstract="false" name="DefinedContributionPlanDiscretionaryEmployerMatchEmployeeContributionLevelOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_AvailableforsaleSecuritiesHeldQualitativeDisclosureNumberofPositions" abstract="false" name="AvailableforsaleSecuritiesHeldQualitativeDisclosureNumberofPositions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_StockIssuedDuringPeriodValueStockBasedCompensationAwards" abstract="false" name="StockIssuedDuringPeriodValueStockBasedCompensationAwards" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ProceedsFromLoansSoldOrParticipatedToOthers" abstract="false" name="ProceedsFromLoansSoldOrParticipatedToOthers" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_OwnershipPercentage" abstract="false" name="OwnershipPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="source_MortgageServicingRightsMember" abstract="true" name="MortgageServicingRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LoansAndLeasesReceivableEvaluatedForImpairment" abstract="false" name="LoansAndLeasesReceivableEvaluatedForImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ReceivablesMember" abstract="true" name="ReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_LesseeOperatingLeaseRightofUseAssetsandLiabilitiesTableTextBlock" abstract="false" name="LesseeOperatingLeaseRightofUseAssetsandLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_RepossessedAssetsPolicyTextBlock" abstract="false" name="RepossessedAssetsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNumber" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_RepossessionsMeasurementInput" abstract="false" name="RepossessionsMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="source_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_TimeDeposits250000orMore" abstract="false" name="TimeDeposits250000orMore" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_StockAwardPlansMember" abstract="true" name="StockAwardPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_CapitalRequiredForCapitalAdequacyWithCapitalBuffer" abstract="false" name="CapitalRequiredForCapitalAdequacyWithCapitalBuffer" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_GrossInvestmentinOperatingLeaseFinancing" abstract="false" name="GrossInvestmentinOperatingLeaseFinancing" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_AppraisalsTradePublicationsAndAuctionValuesValuationTechniqueMember" abstract="true" name="AppraisalsTradePublicationsAndAuctionValuesValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_DefinedContributionPlanWorkingHoursRequiredPerYear" abstract="false" name="DefinedContributionPlanWorkingHoursRequiredPerYear" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_LoansAvailableForRepurchase" abstract="false" name="LoansAvailableForRepurchase" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ImpairmentChargesOnLeasedEquipment" abstract="false" name="ImpairmentChargesOnLeasedEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_FederalFundsSoldAndInterestBearingDepositsInBanks" abstract="false" name="FederalFundsSoldAndInterestBearingDepositsInBanks" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ScheduleOfRecordedInvestmentLoansAndLeasesClassifiedAsTroubledDebtRestructuringTableTextBlock" abstract="false" name="ScheduleOfRecordedInvestmentLoansAndLeasesClassifiedAsTroubledDebtRestructuringTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_MortgagesHeldForSaleMember" abstract="true" name="MortgagesHeldForSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_FederalDepositInsuranceCorporationPremiumAndOtherInsuranceExpense" abstract="false" name="FederalDepositInsuranceCorporationPremiumAndOtherInsuranceExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_LeaseInvestmentsDisclosureTextBlockTextBlock" abstract="false" name="LeaseInvestmentsDisclosureTextBlockTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_ForeignGovernmentAndOtherDebtSecuritiesMember" abstract="true" name="ForeignGovernmentAndOtherDebtSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_SubordinatedNoteIssuedinAugust2007Member" abstract="true" name="SubordinatedNoteIssuedinAugust2007Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementByShareBasedPaymentAwardShareAwardsVestedInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardShareAwardsVestedInPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ExpenseRelatedtoPersonalPropertyTaxPaymentsonOperatingLeases" abstract="false" name="ExpenseRelatedtoPersonalPropertyTaxPaymentsonOperatingLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_MediumAndHeavyDutyTrucksMember" abstract="true" name="MediumAndHeavyDutyTrucksMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ProfessionalAndDirectorsFees" abstract="false" name="ProfessionalAndDirectorsFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_LoanAndLeasePortfolioNumberOfSegmentsWithSimilarRiskCharacteristics" abstract="false" name="LoanAndLeasePortfolioNumberOfSegmentsWithSimilarRiskCharacteristics" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_LessorOperatingLeaseAccumulatedDepreciation" abstract="false" name="LessorOperatingLeaseAccumulatedDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_NonvestedStockAwardsOrUnitsMember" abstract="true" name="NonvestedStockAwardsOrUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_AllowanceForCreditLossesOnUnfundedLoanCommitmentsTableTextBlackTableTextBlock" abstract="false" name="AllowanceForCreditLossesOnUnfundedLoanCommitmentsTableTextBlackTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_DeferredCompensationArrangementWithIndividualsRequisiteServicePeriod" abstract="false" name="DeferredCompensationArrangementWithIndividualsRequisiteServicePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_FurnitureAndEquipmentExpense" abstract="false" name="FurnitureAndEquipmentExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_NonBankingSubsidiaryMember" abstract="true" name="NonBankingSubsidiaryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ServicingAssetAtAmortizedValueExpectedAmortizationInYearTwo" abstract="false" name="ServicingAssetAtAmortizedValueExpectedAmortizationInYearTwo" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" abstract="false" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsorLess" abstract="false" name="ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsorLess" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_OtherRealEstateMember" abstract="true" name="OtherRealEstateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_RecoveryOfVariableLeaseCost" abstract="false" name="RecoveryOfVariableLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_StrategicDeploymentIncentivePlanMember" abstract="true" name="StrategicDeploymentIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_TrustandWealthAdvisoryFeesPolicyTextBlock" abstract="false" name="TrustandWealthAdvisoryFeesPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_RepossessionsMember" abstract="true" name="RepossessionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="source_ScheduleLongTermDebtAndMandatorilyRedeemableSecuritiesTableTextBlock" abstract="false" name="ScheduleLongTermDebtAndMandatorilyRedeemableSecuritiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_ScheduleOfImpairedFinancingReceivablesAverageRecordedInvestmentAndInterestIncomeTableTextBlock" abstract="false" name="ScheduleOfImpairedFinancingReceivablesAverageRecordedInvestmentAndInterestIncomeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_NumberOfTrustsSponsored" abstract="false" name="NumberOfTrustsSponsored" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="source_CashPaidForAbstract" abstract="true" name="CashPaidForAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_ContractualMaturitiesTimeDeposits250000orMoreafter12Months" abstract="false" name="ContractualMaturitiesTimeDeposits250000orMoreafter12Months" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_StockIssuedDuringPeriodSharesStockBasedCompensationAwards" abstract="false" name="StockIssuedDuringPeriodSharesStockBasedCompensationAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="source_NetInvestmentinOperatingLeaseFinancing" abstract="false" name="NetInvestmentinOperatingLeaseFinancing" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="source_LoanAmortizationPeriod" abstract="false" name="LoanAmortizationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="source_ScheduleOfAvailableForSaleDebtSecuritiesTable" abstract="true" name="ScheduleOfAvailableForSaleDebtSecuritiesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="source_DebtSecuritiesAvailableforsaleUnrealizedLossPositionFairValueAbstract" abstract="true" name="DebtSecuritiesAvailableforsaleUnrealizedLossPositionFairValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_FinancingReceivableModificationsSubsequentPaymentDefaultAbstract" abstract="true" name="FinancingReceivableModificationsSubsequentPaymentDefaultAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="source_VariableInterestEntitiesDisclosureTextBlock" abstract="false" name="VariableInterestEntitiesDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="source_ScheduleOfDefinedBenefitAndContributionsPlansDisclosuresTable" abstract="true" name="ScheduleOfDefinedBenefitAndContributionsPlansDisclosuresTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="source_DeferredTaxLiabilitiesOperatingLeaseRightofUseAssets" abstract="false" name="DeferredTaxLiabilitiesOperatingLeaseRightofUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
