Years 1966 to 1975
John D. Guthrie
Porterville, CA
1966
Charles Phelps
Hastings, Iowa
1967
Bill House
Cedar Vale, Kansas
1968
Gilbert L. Hadley
Cambridge, Illinois
1969
W.D. Farr
Greeley, Colorado
1970
Oscar Bredthauer
GrandIsland, NE
1971
John V. Trotman
Montgomery, AL
1972
Milton J. Brown
Mt.Pleasant, MI
1973
Gordon Van Vleck
Plymouth, California
1974
Donald V. Hunter
Centerville, SD
1975