Organized at Marietta, Ohio, by consolidation of Battalions of the 22nd and 63rd Ohio Infantry January 25, 1862. Moved to Paducah, Ky., February 18-23, thence to Commerce, Mo. Attached to 2nd Brigade, 1st Division, Army of the Mississippi, to April, 1862, 1st Brigade, 2nd Division, Army of the Mississippi, to November, 1862. 1st Brigade, 8th Division, Left Wing 13th Army Corps (Old), Dept. of the Tennessee, to December, 1862. 1st Brigade, 8th Division, 16th Army of the Tennessee, to March, 1863. 4th Brigade, District of Corinth, Miss., 2nd Division, 16th Army Corps, to May, 1863. 3rd Brigade, District of Memphis, 5th Division, 16th Army Corps, to November, 1863. Fuller's Brigade, 2nd Division, 16th Army Corps, to March, 1864. 2nd Brigade, 4th Division, 16th Army Corps, to September, 1864. 2nd Brigade, 1st Division, 17th Army Corps, to July, 1865.

SERVICE:
Operations against New Madrid, Mo., March 3-14, 1862. Siege and capture of Island Number 10, Mississippi River, and pursuit to Tiptonville, March 15-April 8. Tiptonville April 8. Expedition to Fort Pillow, Tenn., April 13-17. Moved to Hamburg Landing, Tenn., April 18-23. Action at Monterey April 29. Advance on and siege of Corinth, Miss., April 29-May 30. Skirmish at Farmington May 1. Reconnoissance toward Corinth May 8. Occupation of Corinth May 30, and pursuit to Booneville May 30-June 12. Duty at Clear Creek till August 29. Battle of Iuka, Miss., September 19. Reconnoissance from Rienzi to Hatchie River September 30. Battle of Corinth October 3-4. Pursuit to Ripley October 6-12. Grant's Central Mississippi Campaign, operations on the Mississippi Central Railroad November 2, 1862, to January 12, 1863. Expedition to Jackson after Forest December 18, 1862, to January 3, 1863. Action at Parker's Cross Roads December 30, 1862. Red Mound, or Parker's Cross Roads, December 31. Lexington, Tenn., January 3, 1863. Moved to Corinth, Miss., January 9, and duty there till April. Dodge's Expedition into Northern Alabama April 15-May 8. Rock Cut, near Tuscumbia, April 22. Tuscumbia April 23. Town Creek April 28. Duty at Memphis, Tenn., till October 18. Movement to Prospect, Tenn., October 18 November 30, and duty there till January, 1864. Veterans absent on Furlough January 2 to February 28, 1864. Decatur, Ala., March 8. Duty at Decatur till May. Atlanta Campaign May 1-September 8. Demonstrations on Resaca May 8-13. Sugar Valley near Resaca May 9. Battle of Resaca May 14-15. Advance on Dallas May 18-25. Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills May 25-June 5. Operations about Marietta and against Kenesaw Mountain June 10-July 2. Assault on Kenesaw June 27. Nickajack Creek July 2-5. Ruff's Mills July 3-4. Chattahoochie River July 5-17. Decatur and Battle of Atlanta July 22. Siege of Atlanta July 22-August 25. Ezra Chapel July 28. Flank movement on Jonesboro August 25-30. Battle of Jonesboro August 31-September 1. Lovejoy Station September 2-6. At East Point till October 4. Pursuit of Hood into Alabama October 4-26. March to the sea November 15-December 10. Montieth Swamp December 9. Siege of Savannah December 10-21. Campaign of the Carolinas January to April, 1865. Reconnoissance to the Salkehatchie River, S. C., January 20. Salkehatchie Swamps February 2-5. Skirmishes at Rivers and Broxton Bridges February 2. Action at Rivers Bridge February 3. Binnaker's Bridge, South Edisto River, February 9. Orangeburg February 12-13. Columbia February 16-17. Battle of Bentonville, N. C., March 20-21. 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 20. Grand Review May 24. Moved to Louisville, Ky., June 5, and duty there till July. Mustered out July 8, 1865.
Regiment lost during service 2 Officers and 91 Enlisted men killed and mortally wounded and 5 Officers and 259 Enlisted men by disease. Total 357.