- HAL S. DARR
- June 1, 1950 - April, 1953
- C.A. "MAC" MYHRE
- April, 1953 - January, 1959
- LEWIS B. "BUD" MAYTAG JR.
- January, 1959 - April, 1962
- LEWIS W. DYMOND
- April, 1962 - January, 1969
- E. PAUL BURKE
- January, 1969 - February, 1971
- A. L. "AL" FELDMAN
- March, 1971 - January, 1980
- GLEN W. RYLAND
- February, 1980 - November, 1984
- M. C. "HANK" LUND
- November, 1984 - April, 1985
- JOE O'GORMAN
- April, 1985 - January, 1986
- LARRY MARTIN
- January, 1986 - December, 1986
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