The address of the Historical Society Of The Fort Hill Country is: Po Box 582, Mundelein, IL 60060-0582
The address of the Rock Run Country Historical Society is: Box122, Rock City, IL 61070
The web address of the Illinois Mennonite Historical And Genealogical Society is: http://eastpahistorians.mennonite.net
The phone number of the Illinois Central Railroad Historical Society is: 217-379-2261.
The address of the Lawrence County Illinois Historical Society is: Po Box 446, Lawrenceville, IL 62439
The phone number of the Illinois Mennonite Historical And Genealogical Society is: 309-367-2551.
The address of the Historical Society Of Washington County Illinois is: Po Box 9, Nashville, IL 62263
The address of the Historical Society Of Brooklyn Illinois Incorporated is: 712 Jefferson St, Brooklyn, IL 62059
The web address of the Dwight Historical Society is: dwight-historical-society.org
The web address of the Nauvoo Historical Society is: www.nauvoohistoricalsociety.org
The web address of the Chillicothe Historical Society is: www.chillicothehistorical.org
The web address of the Thebes Historical Society is: www.thebescourthouse.com
The web address of the Chicago Historical Society is: www.chicagohistory.org