EXHIBIT 32.1


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


     In connection  with the  Quarterly  Report of 1st Source  Corporation  (the
"Company")  on Form 10-Q for the quarterly  period ended  September 30, 2004, as
filed with the  Securities  and  Exchange  Commission  on the date  hereof  (the
"Report"), I, Christopher J. Murphy III, Chief Executive Officer of the Company,
certify,  pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that to my knowledge:


(1)  The Report fully complies with the  requirements of sections 13(a) or 15(d)
     of the Securities and Exchange Act of 1934; and

(2)  The information  contained in the Report fairly  presents,  in all material
     respects, the financial condition and results of operations of the Company.



         By:


         /s/CHRISTOPHER J. MURPHY III
         ----------------------------
         Christopher J. Murphy III
         Chief Executive Officer
         October 28, 2004