circa 1970
Chicago Aerial Survey Co.
April 23 1985
Forest Preserve District of DuPage County
June 1964
U.S. Soil Conservation Service
November 7 1974
April 1981
Northeast Illinois Planning Commission
April 1981
Northeast Illinois Planning Commission
April 1981
Northeast Illinois Planning Commission
April 1981
Northeast Illinois Planning Commission
April 1981
Northeast Illinois Planning Commission
April 1981
Northeast Illinois Planning Commission
April 1981
Northeast Illinois Planning Commission
March 25 1986
Sidwell Company
March 25 1986
Sidwell Company
March 25 1986
Sidwell Company
February 2 – March 30 1981
Lindley & Sons, Inc.