Harris H. Barnes, Jr. Clarksdale, Mississippi 1967–1969

Laurel C. Meade West Lafayette, Indiana 1965–1967

Hays Sullivan Burdette, Arkansas 1963–1965

Charles V. Simpson Waterville, Minnesota 1960–1963

Carl G. Simcox Assumption, Illinois 1959–1960

John Sawyer London, Ohio 1957–1959

Albert Dimond Lovington, Illinois 1955–1957

Jake Hartz, Jr. Stuttgart, Arkansas 1953–1955

Chester B. Biddle Remington, Indiana 1951–1953

John W. Evans Montevideo, Minnesota 1949–1951

Ersel Walley Fort Wayne, Indiana 1947–1949

Walter W. McLaughlin Decatur, Illinois 1946–1947