Harry G. Hill
1919-1922
Harry B. Lewis
1922-1923
Thomas B. Elliott
1923-1928
Russell F. Meyer
1928-1953
Bernard B. Burford
1954-1966
Hugh H. Cranford
1967-1986
Richard E. Arnold
1986-1995

(In 1987 the title of Executive Secretary was changed to Executive Director)

Stephen P. Lawson
1995-1999
Logan (Trip) Gore III
1999-2005
Benny Ellerbe
2005-