0000950152-01-500465 DEF 14A 1 20010417 20010319 CITIZENS & NORTHERN CORP 0000810958 6022 232451943 PA 1231 DEF 14A 34 000-16084 1570931 THOMPSON ST RALSTON PA 17763 7172656171 90-92 MAIN ST WELLSBORO PA 16901 DEF 14A 1 l87019adef14a.txt CITIZENS & NORTHERN CORPORATION FORM DEF 14A