Organized at Chicago, Ill., and mustered in July 8, 1861. Moved to Alton, Ill., July 10, 1861, thence to St. Charles and Mexico, Mo. Moved to Ironton, Mo., July 28. Reconnoissance from Ironton to Centreville August 2. Moved to Pilot Knob, Mo., August 8. Moved to Cape Girardeau, Mo., thence to Cairo, Ill., and ordered to Washington, D. C, September 15. Moved to Cincinnati, Ohio; thence ordered to Louisville, Ky., September 28. Attached to Thomas Command, Department of the Ohio, to November, 1861. 8th Brigade, Army of the Ohio, to December, 1861. 8th Brigade, 3rd Division, Army of the Ohio, to July, 1862. Unattached R. R. Guard to September, 1862. 28th Brigade, 3rd Division, Army of the Ohio, to October, 1862. 28th Brigade, 3rd Division, 1st Army Corps, Army of the Ohio, to November, 1862. 3rd Brigade, 1st Division, Centre, 14th Army Corps, Army of the Cumberland, to January, 1863. 3rd Brigade, 1st Division, 14th Army Corps, Army of the Cumberland, to April, 1863. 2nd Brigade, 1st Division, 14th Army Corps, to October, 1863. 3rd Brigade, 1st Division, 14th Army Corps, to May, 1864. 1st Brigade, 3rd Division, 14th Army Corps, to August, 1864.
SERVICE - Duty at Muldraugh's Hill, Ky., till November 30, 1861. At Elizabethtown, Ky., till December 22, and at Beacon Creek, Ky., till February 10, 1862. Advance on Bowling Green, Ky., February 10-15. Occupation of Bowling Green February 15-23. Advance on Nashville, Tenn., February 23-25. Occupation of Nashville February 25-March 18. Advance on Murfreesboro March 18-19. Reconnoissance to Shelbyville, Tullahoma and McMinnville March 25-28. Advance on Huntsville, Ala., April 4-11. Capture of Huntsville April 11. Advance on and capture of Decatur and Tuscumbia April 11-14. Occupation of Decatur April 13. Occupation of Tuscumbia till April 22. Moved to Jonesboro April 22-24, and to Decatur and Huntsville April 25-30. Moved to Athens May 1, and duty there till May 26. Negley's Expedition to Chattanooga, Tenn., May 26-June 11. Chattanooga June 7-8. March to Jasper June 11-16. Rankin's Ferry, near Jasper and Battle Creek, June 21. At Battle Creek till July 11, thence moved to Tullahoma and duty on Nashville & Chattanooga R. R. till September. March to Nashville, thence to Louisville, Ky., September 7-28. Pursuit of Bragg into Kentucky October 1-16. Battle of Perryville, Ky., October 8. Duty at Mitchellsville till December. March to Nashville December 7-9. Advance on Murfreesboro December 26-30. Action at Jefferson December 30. Battle of Stone's River December 31, 1862, and January 1-3, 1863. Duty at Murfreesboro till June. Expedition to McMinnville April 20-30. Middle Tennessee (or Tullahoma) Campaign June 24-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. Dug Gap, Ga., September 11. Battle of Chickamauga September 19-21. Rossville Gap September 21. Siege of Chattanooga September 24-November 23. Chattanooga-Ringgold Campaign November 23-27. Orchard Knob November 23-24. Mission Ridge November 25. Pursuit to Stevens' Gap November 26-27. At Chattanooga till February, 1864. Scout from Chattanooga to Harrison and Ooltewah January 21, 1864. Demonstration on Dalton, Ga., February 22-27. Tunnel Hill, Buzzard's Roost Gap and Rocky Faced Ridge February 23-25. At Tyner's Station and Graysville, Ga., till May, 1864. Atlanta (Ga.) Campaign May 1-June 28. Demonstration against Rocky Faced Ridge May 8-11. Battle of Resaca May 14-15. Advance on Dallas May 22-25. 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 10-28. Pine Hill June 11-14. Lost Mountain June 15-17. Assault on Kenesaw Mountain June 27. Sent to rear June 28 for muster out.
Mustered out August 6, 1864. Expiration of term.
Regiment lost during service 3 Officers and 86 Enlisted men killed and mortally wounded and 2 Officers and 82 Enlisted men by disease. Total 173.