1942
Miller, W. L.
1933
Streator, Sidney V.
1930s
1924
Godshalk, Clarence E.
circa 1927
1983
1920s
December 1969
Hart, Nancy
1925
circa 1935
circa 1950
circa 1958
Tyznik, Anthony
April 1970
June 1972
Coulter, Ronald M.
March 1976
1977
1976
1982
1984
1990
The Morton Arboretum