1990
The Morton Arboretum
1998
Weinstein, John
Nicholson, Trudy H.
20th century
Watts, May Theilgaard
1997
Johnson, Johnson & Roy, Inc.
1993 – 1994
January 5 1999
Bourne, Peter J.
August 6 1996
Curran Sr., William E.
October 26 1994
October 14 1999
Johnson, Gary R.
April 28 1995
November 11 1996
Qinghua, Zhang
August 12 1996
Short Jr., Jeffrey R.
February 3 1995
March 11 1994
Sydnor, T. Davis
March 1 1996
Prairie Rivers R C & D
November 25 1995
Boyer, Jennifer M.
January 24 1996
Hootman, Rick
March 16 1996
August 27 1999
Greenland, Rob
June 6 1999
September 6 1996
November 7 1991
Marquard, Robert D.
May 31 1991
Ren, Gao
April 8 1991
Donnelly, Gerard T.
August 18 1993
Liby, Dennis
October 10 1990
March 22 1996
Mittempergher, Lorenzo
July 29 1997
1991
1993
February 7 1995
December 13 1994
Green, Tom
December 1 1994
Howe, Timothy, Green, Tom
April 11 1997
Hootman, Rick, Taylor, Doris