Organized at Camp Butler, Ill., and mustered in August 15, 1861. Ordered to Pilot Knob, Mo., September 20, 1861. Attached to Dept. of Missouri to March, 1862. 1st Brigade, Steele's Army of Southeast Missouri, to June, 1862. 2nd Brigade, 4th Division, Army of Mississippi, to September, 1862. 31st Brigade, 9th Division, Army of the Ohio, to October, 1862. 31st Brigade, 9th Division, 3rd Corps, Army Ohio, to November, 1862. 2nd Brigade, 1st Division, Right Wing 14th Army Corps, Army of the Cumberland, to January, 1863. 2nd Brigade, 1st Division, 20th Army Corps, Army of the Cumberland, to October, 1863. 1st Brigade, 1st Division, 4th Army Corps, to June, 1865. 2nd Brigade, 1st Division, 4th Army Corps, to August, 1865. Dept. of Texas to December, 1865.
SERVICE - Duty at Pilot Knob till March, 1862. Operations about Fredericktown, Mo., October 12-25, 1861. Action at Fredericktown October 21. Expedition against Thompson's forces November 2-12. Moved to Reeve's Station on Black River March 3-10, 1862, thence to Doniphan and Pocahontas March 31-April 21. Action at Putnam's Ferry, Mo., April 1. March to Jacksonport, Ark., April 30-May 4, thence to Cape Girardeau, Mo., May 10-21, and to Hamburg Landing, Tenn., May 21-24. Siege of Corinth, Miss., May 26-30. Pursuit to Booneville May 31-June 12. March to Jacinto and Ripley June 29-July 4. At Corinth, Miss., till August 14. March through Alabama to Nashville, Tenn., thence to Louisville, Ky., in pursuit of Bragg, August 14-September 26. Pursuit of Bragg into Kentucky October 1-16. Battle of Perryville October 8. Manchester, Ky., October 14. Stanford, Ky., October 14. March to Nashville, Tenn., October 16-November 9, and duty there till December 26. Reconnoissance toward Clarksville November 15-30. Advance on Murfreesboro, Tenn., December 26-30. Nolensville, Knob Gap, December 26. Battle of Stone's River December 30-31, 1862, and January 1-3, 1863. At Murfreesboro till June. Reconnoissance from Murfreesboro March 6-7. Methodist Church on Shelbyville Pike March 6. Reconnoissance to Versailles March 9-14. Operations on Edgeville Pike June 4. 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 September 24-October 27. Reopening Tennessee River October 26-29. Duty at Bridgeport, Ala., till January 26, 1864. Moved to Ooltewah January 26. Reenlisted February 29, 1864. Veterans on furlough March 28 to June 9, rejoining at Ackworth, Ga. Non-Veterans attached to 101st Ohio Infantry during this time. Atlanta (Ga.) Campaign May to September, 1864. Tunnel Hill May 6-7. Demonstration on Rocky Faced Ridge May 8-11. Buzzard's Roost Gap May 8-9. Demonstration on Dalton May 9-13. Battle of Resaca May 14-15. Near Kingston May 18-19. Near Cassville May 19. 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-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. Pursuit of Hood into Alabama October 3-30. 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. March to Huntsville, Ala., and duty there till March 13, 1865. Operations in East Tennessee till April 11. Moved to Nashville, Tenn., and duty there till June. Moved to New Orleans, La., June 17-25, thence to Indianola, Texas, July 12-15, and to Victoria, Texas. Duty there till December, 1865.
Mustered out December 31, 1865.
Regiment lost during service 7 Officers and 107 Enlisted men killed and mortally wounded and 3 Officers and 177 Enlisted men by disease. Total 294.