    <SEC-DOCUMENT>0000034782-18-000036-index.html : 20180309
    <SEC-HEADER>0000034782-18-000036.hdr.sgml : 20180309
    <ACCEPTANCE-DATETIME>20180309161833
    ACCESSION NUMBER:		0000034782-18-000036
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		10
    CONFORMED PERIOD OF REPORT:	20180419
    FILED AS OF DATE:		20180309
    DATE AS OF CHANGE:		20180309
    EFFECTIVENESS DATE:		20180309

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			1ST SOURCE CORP
    		CENTRAL INDEX KEY:			0000034782
    		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
    		IRS NUMBER:				351068133
    		STATE OF INCORPORATION:			IN
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-06233
    		FILM NUMBER:		18680276

    	BUSINESS ADDRESS:
    		STREET 1:		100 NORTH MICHIGAN STREET
    		CITY:			SOUTH BEND
    		STATE:			IN
    		ZIP:			46601
    		BUSINESS PHONE:		5742352702

    	MAIL ADDRESS:
    		STREET 1:		P O BOX 1602
    		STREET 2:		P O BOX 1602
    		CITY:			SOUTH BEND
    		STATE:			IN
    		ZIP:			46634

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	FBT BANCORP INC
    		DATE OF NAME CHANGE:	19820818
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>proxy2018.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: proxy2018.htm

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    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>a1stsourcecorplogo2a05.jpg
    <TEXT>
    Document 2 - file: a1stsourcecorplogo2a05.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>a2018proxycardpage1.jpg
    <TEXT>
    Document 3 - file: a2018proxycardpage1.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>a2018proxycardpage2.jpg
    <TEXT>
    Document 4 - file: a2018proxycardpage2.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>a2018proxynoticepage1.jpg
    <TEXT>
    Document 5 - file: a2018proxynoticepage1.jpg

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    <SEQUENCE>6
    <FILENAME>a2018proxynoticepage2.jpg
    <TEXT>
    Document 6 - file: a2018proxynoticepage2.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>a2018proxynoticepage3.jpg
    <TEXT>
    Document 7 - file: a2018proxynoticepage3.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>a2018proxynoticepage4.jpg
    <TEXT>
    Document 8 - file: a2018proxynoticepage4.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>corplogo2a01a03.jpg
    <TEXT>
    Document 9 - file: corplogo2a01a03.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>performancegraph48.jpg
    <TEXT>
    Document 10 - file: performancegraph48.jpg

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