1940s
Watts, May Theilgaard
1997
Hart, Nancy
20th century
2016
The Morton Arboretum
April 1978
Kohout, Kitty
April 1979
April 1981
May 1974
May 1981
Dritz, Ken
April 1960
October 1972
Reynolds, P. J.
February 1980
March 21 – June 20 1982
Lewis, J.
March 1979
October 1985
November 1972