Chicago Historical Society - Devoted to collecting, interpreting, and presenting the rich multicultural history of Chicago and Illinois. www.chicagohs.org
Illinois Central Historical Society - Dedicated to the preservation of historical and educational information about the Illinois Central Railroad and the many predecessor railroads that have been part of the Illinois Central System. www.icrrhistorical.org/ichsindex.html
Illinois Heritage Association - Perpetuating the history and heritage of Illinois by providing professional services to educational institutions, local government bodies and nonprofit agencies. illinoisheritage.prairienet.org
Illinois State Historical Society - Promoting a deeper understanding of and appreciation for Illinois history. www.prairienet.org/ishs
Society Hill: Illinois Societies - Directory of Illinois historical societies. Includes contact information and links. www.daddezio.com/society/hill/SH-IL-NDX.html
Sons of the Revolution - Sons of the Revolution in the State of Illinois www.execpc.com/~sril
