"Judge Jacob Gale House," (PDF), National Register of Historic Places Nomination Form, Illinois Historic Preservation Agency, HAARGIS Database. Retrieved 14 April 2007.
"North Side Historic District," (PDF), National Register of Historic Places Nomination Form, Illinois Historic Preservation Agency, HAARGIS Database. Retrieved 14 April 2007.
"West Bluff Historic District," (PDF), National Register of Historic Places Nomination Form, Illinois Historic Preservation Agency, HAARGIS Database. Retrieved 15 April 2007.