
Scott P. Squyres
National Executive Secretary
1925-1937

Herman Ziemer
National Executive Secretary
1937-1939

A. Frank Martin
National Executive Secretary
1939-1964

Robert H. Rubin
National Executive Secretary
1964-1975

Dr. Max Mitchell
Interim National Executive Secretary
1975

Frank Evans
National Executive Secretary
1975-1976

Thomas Sirridge
National Executive Secretary
1976-1984

David E. Solomon
National Executive Director
1984-1995

Gwen Wilburn
Interim National Executive Director
Jan 1995 – Apr 1996

Lt. Col. Alan L. Bonner, USAF (retired)
National Executive Director
Apr 1996 – Nov 2013

Diana Spiva
Interim National Executive Director
Nov 2013 – Sept 2014

Steven C. Nelson
National Executive Director
Sept 2014 – Jan 2024