June 1972
Coulter, Ronald M.
1984
Hart, Nancy
1990
The Morton Arboretum
1940s
Watts, May Theilgaard
1946
Watts, May Theilgaard
2015
Sommer, Janice, Dreisilker, Kurt, Kiburz, Jack, Craig, Gay
November 5 1934
E. A. Meyer Associated Nurseries
April 20 1935
E. A. Meyer Associated Nurseries