February 15 1989
Kelsey, Pat
circa 1975
Forest Preserve District of DuPage County
March 1 1986
Illinois State Toll Highway Authority
January 1985
DuPage County Department of Public Works
circa 1988
Tyznik, Anthony
1991
Hootman, Rick
June 5 1995
Department of Environmental Concerns
July 11 1995
November 27 1978
Hall, Marion Trufant