R. E. Gossett
September 1955 - January 1957

Glenn O. Grantham
January 1957 - January 1959

Howard W. Brown
January 1959 - January 1960

Charles McGlothern
January 1960 - January 1962

Jim Webb
January 1962 - January 1963

Charles McGlothern
January 1963 - January 1964

Roy Trentham
January 1964 - January 1965

Harold Bright
January 1965 - January 1966

Charles McGlothern
January 1966 - January 1968

J. O. Byrd
January 1968 - January 1969

Charles McGlothern
January 1969 - January 1972

Ralph Minor
January 1972 - January 1976

Jack Carmichael
January 1976 - January 1978

Ralph Minor
January 1978 - January 1979

Jack Carmichael
January 1979 - January 1981

R. O. Smith
January 1981 - January 1988

Eldon Phillips
January 1988 - January 1996

B. J. Cardwell
January 1996 - January 1998

Douglas R. Pittman
January 1998 - 2000

Tony Blevins
January 2001 - December 2004

Marvin Wise
January 2005 - December 2006

Ron Vais
January 2007 - December 2010

Tony Barnes
January 2010 - Present