Howard Roach Plainfield, Iowa 1944–1946

Joe Johnson Champaign, Illinois 1943–1944

David G. Wing Mechanicsburg, Ohio 1941–1943

G. G. McIlroy Irwin, Ohio 1938–1941

J. B. Park Columbus, Ohio 1937–1938

J. C. Hackleman Urbana, Illinois 1936–1937

E. S. Dyas Ames, Iowa 1935–1936

K. E. Beeson Lafayette, Indiana 1934–1935

C. K. McClelland Fayetteville, Arkansas 1933–1934

John P. Gray Baton Rouge, Louisiana 1932–1933

William J. Morse Washington, D.C. 1931–1932

W. C. Etheridge Columbia, Missouri 1930–1931