"Oscar B. Balch House", Oak Park Tourist, excerpted from: Sprague, Paul E. Guide to Frank Lloyd Wright & Prairie School Architecture in Oak Park Oak Park Bicentennial Commission of the American Revolution [and] Oak Park Landmarks Commission, Village of Oak Park: 1986, (ISBN0961691506). Retrieved 11 June 2007.
state.il.us
gis.hpa.state.il.us
"Emil Bach House", (PDF), National Register of Historic Places Nomination Form, HAARGIS Database, Illinois Historic Preservation Agency. Retrieved 5 June 2007.