Organized at Camp Dennison, Ohio, August 30, 1861. Ordered to Camp Dick Robinson, Ky., September 30, and duty there till October 19. March to Wild Cat October 19-21. Action at Camp Wild Cat, Rockcastle Hills, October 21. Attached to 1st Brigade, Army of the Ohio, November to December, 1861. 1st Brigade, 1st Division, Army of the Ohio, to September, 1862. 1st Brigade, 1st Division, 3rd Army Corps, Army of the Ohio, to November, 1862. 1st Brigade, 3rd Division, Center 14th Army Corps, Army of the Cumberland, to January, 1863. 1st Brigade, 3rd Division, 14th Army Corps, Army of the Cumberland and Army of Georgia, to July, 1865.

SERVICE:
Operations about Mill Springs and Somerset, Ky., December 1-13, 1861. Advance on Camp Hamilton January 1-17, 1862. Battle of Mill Springs January 19-20. Moved from Mill Springs to Louisville Ky., February 10-16, thence to Nashville, Tenn., February 18-March 2, and duty there till March 20. March to Savannah, Tenn., March 20-April 8. Advance on and siege of Corinth, Miss., April 29-May 30. Pursuit to Booneville May 31-June 6. Buell's Campaign in North Alabama and Middle Tennessee June to August. Duty at Iuka, Miss., and Tuscumbia, Ala. March to Louisville, Ky., in pursuit of Bragg August 20-September 26. Pursuit of Bragg into Kentucky October 1-15. Battle of Perryville, Ky., October 8. March to Nashville, Tenn., October 16-November 7, and duty there till December 26. Advance on Murfreesboro December 26-30. Battle of Stone's River December 30-31, 1862, and January 1-3, 1863. Duty at Murfreesboro till June. Expedition toward Columbia March 4-14. Middle Tennessee or Tullahoma Campaign June 23-July 7. Hoover's Gap June 24-26. Occupation of Middle Tennessee till August 16. Passage of Cumberland Mountains and Tennessee River and Chickamauga (Ga.) Campaign August 16-September 22. Battle of Chickamauga September 19-21. Siege of Chattanooga, Tenn., September 24-November 23. Near Chattanooga October 8. Re-opening Tennessee River October 25-29. Brown's Ferry October 27. Chattanooga-Ringgold Campaign November 23-27. Orchard Knob November 23-24. Mission Ridge November 25. Regiment re-enlisted January 1, 1864. Veterans on Furlough January 22, to March 7, 1864. Reconnoissance to Dalton, Ga., February 22-27, 1864. Tunnel Hill, Buzzard's Roost Gap and Rocky Faced Ridge February 23-25. Atlanta (Ga.) Campaign May 1 to September 8. Demonstrations on Rocky Faced Ridge May 8-11. 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. Marietta June 11-14. Lost Mountain June 15-17. Assault on Kenesaw June 27. Ruff's Station, Smyrna Camp Ground, July 4. Chattahoochie River July 5-17. Peach Tree Creek July 19-20. Siege of Atlanta July 22-August 25. Utoy Creek August 5-7. Flank movement on Jonesboro August 25-30. Battle of Jonesboro August 31-September 1. Operations against Hood in North Georgia and North Alabama September 29-November 3. March to the sea November 15-December 10. Siege of Savannah December 10-21. Campaign of the Carolinas January to April, 1865. Fayetteville, N. C., March 11. Battle of Bentonville 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 20. Grand Review May 24. Moved to Louisville, Ky., June, and duty there till July. Mustered out July 16, 1865.
Regiment lost during service 6 Officers and 71 Enlisted men killed and mortally wounded and 1 Officer and 154 Enlisted men by disease. Total 232.