Exhibit 32.2



                            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 Annual Report of 1st Source Corporation (the "Company")
on Form 10-K for the fiscal year ended December 31, 2003, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Larry
E. Lentych, Chief Financial 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/Larry E. Lentych
-----------------------------
Larry E. Lentych
Chief Financial Officer
February 19, 2004