The 31st Wisconsin Infantry mustered out after having moved through Kentucky, Tennessee, Georgia, the Carolinas, Virginia, and Washington, D.C. It fought in the Atlanta Campaign, on Sherman’s March to the Sea, and in the Battle of Bentonville. Companies "A" to "F" had mustered out June 20, 1865. Companies "G" to "K" mustered out July 8, 1865. The regiment lost 112 men during service. Twenty-three enlisted men were killed. Three officers and 86 enlisted men died from disease.