Organized at Camp Dennison, Ohio, June 18, 1861. Moved to Fetterman, W. Va., June 29-July 2. Attached to 1st Brigade, Army of Occupation, West Virginia, to September, 1861. Reynolds' Command, Cheat Mountain, W. Va., to November, 1861. 10th Brigade, Army Ohio, to December, 1861. 10th Brigade, 4th Division, Army Ohio, to September, 1862. 10th Brigade, 4th Division, 2nd Corps, Army Ohio, to November, 1862. 3rd Brigade, 2nd Division, Left Wing 14th Army Corps, Army of the Cumberland, to January, 1863. 3rd Brigade, 2nd Division, 21st Army Corps, Army of the Cumberland, to October, 1863. 2nd Brigade, 3rd Division, 4th Army Corps, to June, 1864.

SERVICE:
At Grafton, W. Va., July 2, 1861. March to Philippi July 4. West Virginia Campaign July 6-21. Laurel Hill July 8. Carrick's Ford July 13. Pursuit of Garnett's forces July 15-16. Duty at Beverly till August 6. Camp at Elkwater, foot of Cheat Mountain, August 6-November 19. Operations on Cheat Mountain against Lee September 11-17. Cheat Mountain Pass September 12. Reconnoissance up Tygart Valley September 26-29. Moved to Louisville November 19-30. Duty at Camp Buell till December 9, and at Camp Wickliffe, Ky., till February 14, 1862. Expedition down Ohio River to reinforce Gen. Grant at Fort Donelson, thence to Nashville, Tenn., February 14-25. Occupation of Nashville February 25, the first Regiment to enter city. Camp on Murfreesboro Pike till March 17. March to Savannah, Tenn., March 17-April 6. Battle of Shiloh, Tenn., April 6-7. Duty at Pittsburg Landing till May 24. Siege of Corinth, Miss., May 24-30. Occupation of Corinth May 30. Pursuit to Booneville May 30-July 12. Moved to Athens, Ala., and duty there till July 17. Ordered to Murfreesboro July 17, thence to McMinnville and duty there till August 17. March to Louisville, Ky., in pursuit of Bragg August 17-September 26. Pursuit of Bragg into Kentucky October 1-22. Battle of Perryville October 8. March to Nashville, Tenn., October 22-November 7, and duty there till December 26. Advance on Murfreesboro, Tenn., December 26-30. Battle of Stone's River December 30-31, 1862, and January 1-3, 1863. Duty at and near Murfreesboro till June. Actions at Woodbury, Tenn., January 24 and April 4. Middle Tennessee or Tullahoma Campaign June 23-July 7. At Manchester till August 16. Passage of Cumberland Mountains and Tennessee River, and Chickamauga (Ga.) Campaign August 16-September 22. Battle of Chickamauga September 19-20. Siege of Chattanooga, Tenn., September 24-November 23. Reopening Tennessee River October 26-29. Brown's Ferry October 27. Chattanooga-Ringgold Campaign November 23-27. Orchard Knob November 23-24. Mission Ridge November 25. March to relief of Knoxville, Tenn., November 28-December 8. Operations in East Tennessee till April, 1864. About Dandridge January 16-17. Garrison at Cleveland, Tenn., April 12-May 17, and at Resaca, Ga., guarding railroad bridge over the Oostenaula River, till June 6. Ordered to the rear for muster out June 6. Mustered out at Camp Dennison, Ohio, June 23, 1864, expiration of term.
Regiment lost during service 4 Officers and 82 Enlisted men killed and mortally wounded and 2 Officers and 56 Enlisted men by disease. Total 144.