 The 4th Minnesota Infantry Regiment was mustered into Federal service by companies at Fort Snelling, Minnesota, between October 4 and December 23, 1861, and moved to Benton Barracks, St. Louis, Missouri, on April 23, 1862.The 4th Minnesota Infantry participated in Maj. Gen. Henry Wager Halleck's advance on and Siege of Corinth, Mississippi, from May 18 to May 30, 1862.The regiment participated in Ulysses S. Grant's Central Mississippi Campaign from November 1862 to January 1863.