Organized at Toledo, Ohio, August 14-September 5, 1861. Moved to Cincinnati, Ohio, August 23, thence to Frankfort, Ky., August 25, and to Nicholasville August 28. At Camp Dick Robinson and Lebanon, Ky., October 2, 1861, to January 1, 1862. Action at Camp Wild Cat, Rockcastle Hills. October 21, 1861. Attached to Thomas' Command, Camp Dick Robinson, Ky., to November, 1861. 2nd Brigade, Army Ohio, to December, 1861. 2nd Brigade, 1st Division, Army Ohio, to September, 1862. 2nd Brigade, 1st Division, 3rd Corps, Army Ohio, to November, 1862. 2nd Brigade, 3rd Division, Centre 14th Army Corps, Army of the Cumberland, to January, 1863. 2nd Brigade, 3rd Division, 14th Army Corps, to October, 1863. 3rd Brigade, 3rd Division, 14th Army Corps, to July, 1865.

SERVICE:
Advance on Camp Hamilton January 1-15, 1862. Action at Logan's Cross Roads or Fishing Creek January 19-20 (Co. "C"). Battle of Mill Springs January 19-20. Duty at Mill Springs till February 11. Moved to Louisville, Ky., thence to Nashville, Tenn., February 11-March 2. March to Savannah, Tenn., March 20-April 7. Bear Creek, Ala., April 12-13. Advance on and siege of Corinth, Miss., April 29-May 30. Duty at Iuka, Miss., and Tuscumbia, Ala., June to August. Action at Decatur, Ala., August 7. March to Nashville, Tenn., thence to Louisville, Ky., August 20-September 26. Pursuit of Bragg into Kentucky October 1-16. Battle of Perryville, Ky., October 8 (Hesdquarters Guard). March to Gallatin, Tenn., and duty there till January 13, 1863. Operations against Morgan December 22, 1862, to January 2, 1863. Boston December 29, 1862. Rolling Fork September 29-30. Moved to Nashville January 13, thence to Murfreesboro, Tenn., and duty there till June. Expedition toward Columbia March 4-14. Middle Tennessee or Tullahoma Campaign June 23-July 7. Hoover's Gap June 24-26. Tullahoma July 1. Occupation of Middle Tennessee till August 16. Passage of the Cumberland Mountains and Tennesee River, and Chickamauga (Ga.) Campaign August 16-September 22. Battle of Chickamauga September 19-21. Siege of Chattanooga, Tenn., September 24-Novemher 23. Chattanooga-Ringgold Campaign November 23-27. Orchard Knob November 23-24. Mission Ridge November 25. Re-enlisted December 17, 1863. Atlanta (Ga.) Campaign May 1-September 8, 1864. 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. Pine Hill June 11-14. Lost Mountain June 15-17. Pine Knob, near Marietta, June 19. Assault on Kenesaw June 27. Ruff's Station 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 19. Grand Review May 24. Moved to Louisville, Ky., June 15. Mustered out at Louisville, Ky., July 11, 1865.
Regiment lost during service 5 Officers and 141 Enlisted men killed and mortally wounded and 1 Officer and 185 Enlisted men by disease. Total 332.