Organized at Mattoon, Ill., and mustered in August 28, 1862. Ordered to Louisville, Ky. Attached to 3rd Brigade, Cruft's Division, Army of Kentucky, to September 13. 1862. 4th Brigade, 2nd Division, Army of the Ohio, to October 1, 1862. 5th Brigade, 2nd Division., 1st Corps. Army of Ohio, to November, 1862. 2nd Brigade, 2nd Division, Right Wing 14th Army Corps, Army of the Cumberland, to January, 1863. 2nd Brigade, 2nd Division, 20th Army Corps, Army of the Cumberland, to October, 1863. 3rd Brigade, 2nd Division, 4th Army Corps, to June, 1865.
SERVICE - Pursuit of Bragg into Kentucky October 1-16, 1862. Near Clay Village October 4. Battle of Perryville October 8. March to Nashville, Tenn., October 16 - November 7, and duty there till December 26. Reconnaissance's toward Lavergne November 19, and November 26-27. Lavergne, Scrougesville, November 27. Advance on Murfreesboro December 26-30. Battle of Stone's River December 30-31, 1862, and January 1-8, 1863. At Murfreesboro till June. Middle Tennessee (or Tullahoma) Campaign June 24 - July 7. Liberty Gap June 24-27. 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, Ga., September 19-20. Siege of Chattanooga, Tenn., September 24 - November 23. Chattanooga - Ringgold Campaign November 23-27. Orchard Knob November 23-24. Mission Ridge November 25. Pursuit to Graysville November 26-27. March to relief of Knoxville November 28 - December 7. Operations in East Tennessee till April, 1864. Atlanta (Ga.) Campaign May 1 - September 8. Demonstrations on Rocky Faced Ridge May 8-11. Buzzard's Roost Gap May 8-9. Battle of Resaca May 14-15. Adairsville May 17. Near Kingston May 18-19. Near Cassville May 19. Advance on Dallas May 22-25, Operations on 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. 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. Flank movement on Jonesboro August 25-30. Battle of Jonesboro August 31 - September 1. Lovejoy Station September 2-6. Moved to Chattanooga, Tenn., September 25, thence to Bridgeport, Ala., and duty there till October 19. Moved to Chattanooga, Tenn., October 19, to Alpine, Ga., October 22, and to Pulaski, Tenn., October 30 - November 2. Nashville Campaign November - December. Columbia, Duck River, November 24-27. Spring Hill November 29. Battle of Franklin November 30. Battle of Nashville December 15-16. Pursuit of Hood to the Tennessee River December 17-28. At Decatur, Ala., January 6 to March 30, 1865. Moved to Bull's Gap March 30, thence to Nashville April 22, and duty there till June.
Mustered out June 12 and discharged at Camp Butler, Ill., June 23, 1865.
Regiment lost during service 4 Officers and 81 Enlisted men killed and mortally wounded and 1 Officer and 211 Enlisted men by disease. Total 297.