Illinois State Archives--Illinois Statewide Marriage Index, 1763-1900

The sources for this index include original county clerks' marriage records, such as marriage registers and licenses, as well as publications of county genealogical societies and private individuals. For each marriage, the index includes the names of the groom and bride, the date of the marriage or issuance of the license, the name of the county in which the marriage was performed, and a citation to the original record—volume and page number for registers or file number for licenses. Volume and page or license numbers are omitted in the index when published sources failed to provide this information.