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Incoming Resources
- Charles C Thomas, Springfield, IL, ©2006
- Illinois Dept. of Conservation, Division of Historic Sites,, Springfield, IL
- Illinois Historic Preservation Agency,, Springfield, IL
- Illinois General Assembly, Legislative Research Unit, Springfield, IL, 2007
- The G.S. Brenac Publishing House, Springfield, IL, 2021
- Illinois State Library, State of Illinois, Springfield, IL, 2013
- Illinois Dept. of Natural Resources, Springfield, IL, ©2000
- Published for the Illinois State Historical Society by Image Publications, Springfield, IL, c1997-
- Illinois Executive Mansion Association, Springfield, IL, c2002
- Illinois Historic Preservation Agency, Springfield, IL, 1987