Exhibit 32.1

              Certification of President and Chairman of the Board

  Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code


         I,  William R. Thomas,  President  and Chairman of the Board of Capital
Southwest Corporation, certify that, to my knowledge:

         1.    the Form 10-Q, filed with the Securities and Exchange  Commission
on November 3, 2006 ("accompanied  report") fully 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  accompanied  report  fairly
presents,  in all material respects,  the consolidated  financial  condition and
results of operations of Capital Southwest Corporation.


Date: November 3, 2006                      By: /s/ William R. Thomas
      ----------------                          --------------------------------
                                                William R. Thomas, President and
                                                Chairman of the Board