Organized at Gosport and Indianapolis, Ind., February 11, 1862. Moved to Commerce, Mo., February 18-22, the first Regiment to report to General Pope for duty with the Army of Mississippi. Attached to 1st Brigade, 2nd Division, Army of Mississippi, to April, 1862. 2nd Brigade, 3rd Division, Army of Mississippi, April, 1862. 1st Brigade, 3rd Division, Army of Mississippi, to November, 1862. 1st Brigade, 7th Division, Left Wing 13th Army Corps, Dept. of the Tennessee, to December, 1862. 1st Brigade, 7th Division, 16th Army Corps, to January, 1863. 1st Brigade, 7th Division, 17th Army Corps, to September, 1863. 1st Brigade, 2nd Division, 17th Army Corps, to December, 1863. 1st Brigade, 3rd Division, 15th Army Corps, to April, 1865. 2nd Brigade, 4th Division, 15th Army Corps, to July, 1865.
Siege operations against New Madrid, Mo., March 3-14, 1862. Siege and capture of Island No. 10, Mississippi River, March 15-April 8. Expedition to Fort Pillow, Tenn., April 13-17. Moved to Hamburg Landing, Tenn., April 18-22. Advance on and siege of Corinth, Miss., April 29-May 30. Pursuit to Booneville May 30-June 12. Duty at Clear Creek till August 6, and at Jacinto till September 18. March to Iuka, Miss., September 18-20. Battle of Corinth October 3-4. Pursuit to Ripley October 5-12. Grant's Central Mississippi Campaign. Operations on Mississippi Central Railroad November 2, 1862, to January 10, 1863. Reconnoissance from LaGrange November 8-9, 1862. Duty at Memphis January 12 to February 24, 1863. Yazoo Pass Expedition by Moon Lake, Yazoo Pass and Coldwater and Tallahatchie Rivers February 24-April 8. Operations against Fort Pemberton and Greenwood March 13-April 5. Moved to Milliken's Bend, La., April 13. Movement on Bruinsburg and turning Grand Gulf April 25-30. Battle of Port Gibson May 1 (Reserve). Jones' Cross Roads and Willow Springs May 3. Battles of Raymond May 12; Jackson May 14; Champion's Hill May 16. Siege of Vicksburg May 18-July 4. Assaults on Vicksburg May 19 and 22. Surrender of Vicksburg July 4. Duty there till September 13. Movement to Memphis, Tenn., thence march to Chattanooga, Tenn., September 13-November 20. Operations on Memphis & Charleston Railroad in Alabama October 20-29. Chattanooga-Ringgold Campaign November 23-27. Tunnel Hill November 23-25. Mission Ridge November 25. Pursuit to Graysville November 26-27. Duty at Bridgeport and Huntsville, Ala., December 18, 1863, to June 22, 1864. Re-enlisted January 1, 1864. Guard Bridge at Etowah River July 13-August 26. Ordered to Chattanooga, Tenn., August 26. Pursuit of Wheeler August 27-31. Duty at Chattanooga till September 21, and at Etowah River till November 12. March to the sea November 15-December 10. Siege of Savannah December 10-21. Campaign of the Carolinas January to April, 1865. Salkehatchie Swamp, S. C., February 2-5. South Edisto River February 9. North Edisto River February 12-13. Columbia February 16-17. Battle of Bentonville, N. C., March 19-21. Occupation of Goldsboro March 24. Advance on Raleigh April 10-14. Occupation of Raleigh April 14. Bennett's House April 26. Surrender of Johnston and his army. March to Washington, D. C., via Richmond, Va., April 29-May 19. Grand Review May 24. Moved to Louisville, Ky., June, and there mustered out July 17, 1865.
Regiment lost during service 1 Officer and 36 Enlisted men killed and mortally wounded and 229 Enlisted men by disease. Total 266.