Exhibit 99.2

                            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 Quarterly Report of NB&T Financial Group, Inc. (the
"Company"), on Form 10-Q for the period ended June 30, 2002, dated the date of
this Certification (the "Report"), I, Timothy L. Smith, the President and the
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:

     1. The Report complies with the requirements of section 13(a) or 15(d) of
     the Securities 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.


Date: August 8, 2002              /s/ Timothy L. Smith
                                  --------------------------------
                                  Timothy L. Smith
                                  President and Chief Executive Officer

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