"History". City of Des Plaines. May 26, 2006. Retrieved June 5, 2006.
idaillinois.org
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Illinois Secretary of State; Rand McNally (1939). Illinois Road Map (Map) (1939–1940 ed.). c. 1:918,720. Springfield: Illinois Secretary of State. Retrieved March 20, 2015 – via Illinois Digital Archives.
Illinois Secretary of State; Rand McNally (1940). Illinois Road Map (Map). c. 1:918,720. Springfield: Illinois Secretary of State. Retrieved March 20, 2015 – via Illinois Digital Archives.
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Illinois Division of Highways; H.M. Gousha (1957). Illinois Official Highway Map (Map). [1:805,000]. Springfield: Illinois Division of Highways. Retrieved March 20, 2015 – via Illinois Digital Archives.
Illinois Division of Highways; H.M. Gousha (1960). Illinois Official Highway Map (Map). [1:790,00]. Springfield: Illinois Division of Highways. Retrieved March 20, 2015 – via Illinois Digital Archives.
Illinois Division of Highways (1968). Illinois Official Highway Map (Map). [1:772,500]. Springfield: Illinois Division of Highways. Retrieved March 20, 2015 – via Illinois Digital Archives.