Illinois sent its sons to every American war, and each conflict left its own trail of records. A soldier or sailor in your family is often the ancestor easiest to document — the government kept careful count.
The people in this story fill our public-record database. Search a surname and filter to Illinois.
Search Illinois records →Illinois’s wars, generation by generation
Illinois raised troops from the War of 1812’s Fort Dearborn tragedy through the Black Hawk War of 1832, the Mexican War, and two World Wars — with Great Lakes Naval Station and vast Chicago war industries in the twentieth century.
The home front
The wars of the twentieth century were fought at home as well — in training camps, National Guard armories, war plants, and Liberty-bond drives. Draft registrations, service cards, and unit histories place a Illinois family in each conflict, generation by generation.
Finding your Illinois ancestors
- Draft cards, adjutant-general records, and National Archives service files trace a soldier through any of the nation’s wars.
- Census records (free through 1950) list occupation and residence — placing your family in a specific Illinois county and town, decade by decade.
- Death & cemetery records — search our Illinois database for the people in this story and the generations around them.
- The Illinois State Archives in Springfield holds the deeper collections — company, church, military, and county records.
- Newspapers on the Library of Congress’s Chronicling America carried the obituaries, accidents, and milestones of these communities.
We work back from you to the ancestor who lived this history — census, vital, church, and cemetery records, written into a book and an interactive family site. Flat rate, no DNA test.
See how it works →Frequently asked questions
What wars did Illinois soldiers fight in?
Beyond the Civil War, Illinois men served across the nation’s conflicts — the frontier and 1812-era fighting, the Mexican and Spanish-American Wars, and both World Wars and after.
How do I find a military ancestor in Illinois?
Start with WWI and WWII draft registration cards, state adjutant-general and National Guard records, and unit histories, then order service and pension files from the National Archives.