Oscar Abraham Zumwalt
January 15, 1927 - April 14, 1941

Enoch Edward Irwin
April 14, 1941 - April 13, 1953

William Reginald "Rip" Taylor
April 13, 1953 - April 8, 1957

Henry Perry Meyer
April 8, 1957 - April 10, 1961

George Leslie Herbet King
April 10, 1961 - April 9, 1973

William Anthony Kuchar
April 9, 1973 - April 9, 1979

Roy Richard Heffley
April 9, 1979 - May 13, 1991

Dwain Keith Dungen
May 13, 1991 - May 22, 1995

Thomas Beattie Hancher
May 22, 1995 - May 10, 1999

Paula Frnka
May 10, 1999 to May7, 2005

Roy Richard Heffley
May 7, 2005 to May 2009

Dwain Keith Dungen
May 8, 2009 - August 2018