Organized at Camp Hancock, near Chicago, Ill., and mustered in October 1, 1862. Ordered to Memphis, Tenn., November 6, 1862. Attached to 1st Brigade, District of Memphis, Tenn., Right Wing 13th Army Corps (Old), Department of the Tennessee, November, 1862. 1st Brigade, 2nd Division, District of Memphis, 13th Army Corps, to December, 1862. 1st Brigade, 2nd Division, Sherman's Yazoo Expedition to January, 1863. 1st Brigade, 2nd Division, 15th Army Corps, Army of the Tennessee, to August, 1863. 3rd Brigade, 2nd Division, 16th Army Corps, to November, 1863. Post of Corinth, Miss., 2nd Division, 16th Army Corps, to January, 1864.. 2nd Brigade, District of Memphis, Tenn., 16th Army Corps, to June, 1864. 2nd Brigade, Sturgis' Expedition, June, 1864. 1st Brigade, Post of Memphis, District of West Tennessee, to February, 1865. Unattached, Post of Memphis, District of West Tennessee, to June, 1865.

SERVICE - Grant's Central Mississippi Campaign. "Tallahatchie March," November 26 - December 12, 1862. Sherman's Yazoo Expedition December 20, 1862 - January 2, 1863. Chickasaw Bayou December 26-28. Chickasaw Bluff December 29. Expedition to Arkansas Post, Ark., January 3-10. Assault and capture of Fort Hindman, Arkansas Post, January 10-11. (Cos. "C," "D," "F," "I" and "K" guard prisoners North after Arkansas Post, and retained in Illinois on guard duty till October, 1864, when rejoined Regiment at Memphis, Tenn.) Moved to Young's Point, La., January 17-22, and duty there till March. Expedition to Rolling Fork, Miss., via Muddy, Steele's and Black Bayous and Deer Creek March 14-27. Near Deer Creek March 22. Demonstration on Haines' and Drumgould's Bluffs April 29 - May 2. Movement to Jackson, Miss., via Grand Gulf, May 2-14. Jackson May 14. Champion's Hill May 16. Siege of Vicksburg, Miss., May 18 - July 4. Assaults on Vicksburg May 19 and 22. Surrender of Vicksburg July 4. Advance on Jackson, Miss., July 4-10. Siege of Jackson July 10-17. Ordered to Memphis, Tenn.; thence to Corinth, Miss., and Post duty there till January, 1864. At Memphis, Tenn., till June, 1865. Sturgis' Expedition Into Mississippi June 1-13, 1864. Near Colliersville, Tenn., June 10. Brice's (or Tishamingo) Creek, near Guntown, Miss., June 10. Ripley June 11. Repulse of Forrest's attack on Memphis August 21, 1864. Eastport, Miss., October 10, 1864.

Mustered out June 20, 1865.

Regiment lost during service 1 Officer and 25 Enlisted men killed and mortally wounded and 4 Officers and 273 Enlisted men by disease. Total 303.