The guide to the Illinois Regional Archives Depository (IRAD) system will tell you where to look for elusive records. Databases include vital records, military records and land sales. You have to drill down several levels to get to the vital records but they are there. There are links to Circuit Clerks — Divorce Records, County Clerks — Births, Deaths and Marriages (certified copies), Department of Public Health, Office of Vital Records — Births and Deaths (certified copies), Illinois Regional Archives Depositories (IRAD) — Births, Deaths, Divorce and Marriages
Illinois State Archives and Deaths, 1916–1947.
If you are looking for family records for known family meembers, CyberDrive Illinois might help you by providing the Vital Records information, business listings, drivers records, and more. It is the website of the Secretary of State of Illinois and offers links to a lot of information so if you know the name of the person you are looking for, it can be very helpful. If you don’t know your family members name already, this site won’t be of much help to you.