1970s
Knoedler, Bob
Brown, Ray
March 24 1955
Holabird & Root
1980
Hamilton Industries
September 12 1980
B.O.C. Heating & Air Conditioning Co.
December 15 1980
Barber-Colman Company
1980
Hamilton Industries
June 21 – September 20 1982
December 21 1991 – March 20 1992
Doty, Carol L.
August 17 2015
The Morton Arboretum
1955 – 1956
April 1986
Kohout, Kitty
May 1988
Irving, Gary
January 1994
Nachel, Jim
2005 – 2012
Hagstrom, John