The 15th Wisconsin Infantry was organized at Camp Randall in Madison and mustered into service on February 2, 1862. The regiment left Wisconsin for St. Louis, Missouri, on March 2, 1862. During its service it moved along the Mississippi River, through Tennessee, Mississippi, Alabama, and Kentucky. It participated in the battles of Perryville, Stones River, Orchard Knob, Lookout Mountain, Missionary Ridge, the Georgia Campaign, the battles of Chickamauga, Resaca, Kennesaw Mountain, and Jonesboro, as well as in the sieges of Chattanooga and Atlanta. Companies A, B and E mustered out on December 1, 1864; the other companies followed in January and February. The regiment lost 336 men during its service. Eight officers and 86 enlisted men were killed. One officer and 241 enlisted men died from disease.

View a longer history

View the roster

View a list of casualties

View original documents

Learn More

Dictionary of Wisconsin History

Explore more than 1,600 people, places and events in Wisconsin history.

[Source: Estabrook, Charles E, ed. Records and sketches of military organizations: population, legislation, election and other statistics relating to Wisconsin in the period of the Civil War. (Madison, 1914?).]

Have Questions?

Contact our Library staff by email below:

asklibrary@wisconsinhistory.org