Larry A. McClellan: Eintrag zu Oak Forest, IL. In: Encyclopedia of Chicago, Chicago Historical Society.
Margaret Dorsey Phelps: Almshouses. In: Encyclopedia of Chicago, Chicago Historical Society.
cookcountyhhs.org
About us auf der Website des Oak Forest Health Center
google.de
books.google.de
Ann Durkin Keating: Chicago neighborhoods and suburbs : a historical guide. University of Chicago Press, Chicago 2008, ISBN 978-0-226-42883-3, S. 136–137.