Sources:

Wikipedia 
Library of Congress /Prints and Photographs Online Catalog /  http://www.loc.gov/pictures/
http://www.historicmarketsquare.com
www.idaillinois.org / Illinois Digital Architecture / "The New Market Square at Lake Forest" / October 1917
http://www.easternct.edu
www.historicmarketsquare.com
www.ghostsofdc.org
www.lindavista.org
"Final Report Reconnaissance Level Architectural Survey of the Original Mile" - City of Midwest City / August 31, 1992
http://digital.library.okstate.edu
http://newsok.com

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