Maurice E. Webb - 1971
Eugene C. Leao - 1979
Arthur H. Davis - 1980
Carl V. Olson - 1984
Glenn R. Olson - 1985
Florin W. Hemminger - 1986
John W. Schwietert - 1987
James D. Marrs - 1990
Perry Anderson - 1991
Charles H. Walker - 1995
Matt Schatz - 1997
W. Milton Edney - 1998
Carl D. Pengra - 1999
Robert D. Tate - 2000
Donald R. Salmon - 2001
Richard M. Luther - 2002
Harlan F. Peterson - 2004
Richard L. Aldrich - 2005
Gerald A. Johnson - 2006
Steven Hendrickson - 2007