Illinois State Archives Online Databases
There are a variety of online genealogical databases at the Illinois State Archives website. Some of the larger ones are listed here. Before using any database with which you are unfamiliar, read more about the database and where the records were obtained. Some of these databases are incomplete and that is something the user should be aware of before using the site.
Database for the Illinois Veterans' History Project
Database of Illinois War of 1812 Veterans
Database of Illinois Winnebago War Veterans
Database of Illinois Black Hawk War Veterans
Database of Illinois Mexican War Veterans
Illinois Civil War Muster and Descriptive Rolls Database
Database of Illinois Civil War Veterans Serving in the U.S. Navy
Database of Illinois Civil War Veterans of Missouri Units
Database of Illinois Spanish–American War Veterans
Database of the 1929 Illinois Roll of Honor
Database of Illinois Soldiers' and Sailors' Home Residents
Illinois Statewide Marriage Index, 1763–1900 (you can find Abraham Lincoln and Mary Todd)
Illinois Statewide Death Index, Pre–1916
Illinois Statewide Death Index (1916–1950)
Remember too that online indexes are pointers to the original records. The index is not the end of your search, but rather the beginning.
