Organized at Centralia, Ill., and mustered in September 3, 1862. Moved to Louisville, Ky., September 8, 1862, thence to Jeffersonville September 9, and to Shepherdsville September 19. Attached to 40th Brigade, 12th Division, Army of the Ohio, to November, 1862. 2nd Brigade, 5th Division, Centre 14th Army Corps, Army of the Cumberland, to January, 1863. 2nd Brigade, 5th Division, 14th Army Corps, Army of the Cumberland, to June, 1863. 1st Brigade, 4th Division, 14th Army Corps, to October, 1863. Wilder's Mounted Infantry Brigade, Army of the Cumberland, to November, 1863. 3rd Brigade, 2nd Division, Cavalry Corps, Army of the Cumberland, November, 1863. 2nd Brigade, 2nd Division, Cavalry Corps, Army of the Cumberland, to December, 1863. 3rd Brigade, 2nd Division, Cavalry Corps, Army of the Cumberland, to November, 1864. 1st Brigade, 2nd Division, Cavalry Corps, Military Division Mississippi, to June, 1865.
SERVICE - Moved to Elizabethtown, Ky., thence to Frankfort and Versailles September 30 - October 13, 1862. March to Bowling Green, Ky., October 26 - November 3, thence to Scottsboro November 10 To Gallatin November 26, and to Castillian Springs November 28. To Bledsoe Creek December 14. Operations against Morgan in Kentucky December 22 - January 2, 1863. Moved to Cave City, thence to Murfreesboro, Tenn., January 2-8, and duty there till June. Expedition to Auburn, Liberty and Alexandria February 3-5. Regiment mounted March 8. Expedition to Woodbury March 3-8. Expedition to Lebanon, Carthage and Liberty April 1-8. Expedition to McMinnville April 20-30. Reconnaissance to the front May 23, Armed with Spencer Carbines May 31. Liberty Road June 4. Liberty June 10. Middle Tennessee or Tullahoma Campaign June 24 - July 7. Hoover's Gap June 24-26. Occupation of Manchester June 27. Dechard June 29. Pelham and Elk River Bridge July 2. Occupation of Middle Tennessee till August 16. Passage of the Cumberland Mountains and Tennessee River and Chickamauga (Ga.) Campaign August 16 - September 22. Friar's Island September 9. Lee and Gordon's Mills September 11-13. Ringgold September 11. Leet's Tan Yard September 12-13. Pea Vine Ridge September 18. Alexander's Bridge September 18. Battle of Chickamauga September 19-21. Operations against Wheeler and Roddy September 30 - October 17. Hill's Gap, Thompson's Cove, near Beersheba October 3. Murfreesboro Road near McMinnville and McMinnville October 4. Farmington October 7. Sims' Farm near Shelbyville October 7. Chattanooga - Ringgold Campaign November 23-27. Raid on East Tennessee and Georgia R. R. November 24-27. Charleston November 26. Cleveland November 27. March to relief of Knoxville and operations in East Tennessee November 28, 1863, to January 6, 1864. Near Loudon December 2, 1863. Expedition to Murphy, N. C., December 6-11. Operations in North Alabama January 23-29, 1864. Florence January 25. Demonstration on Dalton, Ga., February 22-27. Tunnel Hill, Buzzard's Roost Gap and Rocky Faced Ridge February 23-25. Near Dalton February 23. Atlanta (Ga.) Campaign May 1 - September 4. Battle of Resaca May 13-15. Rome May 17-18. Near Dallas May 24. Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills May 25 - June 5. Near Big Shanty June 9. Operations about Marietta and against Kenesaw Mountain June 10 - July 2. Noonday Creek June 19-20. Powder Springs, Lattimer's Mills, June 20. Noonday Creek and assault on Kenesaw June 27. Nickajack Creek July 2-5. Rottenwood Creek July 4. Chattahoochie River July 5-17. Garrard's Raid to Covington July 22-24. Siege of Atlanta July 22 - August 25. Garrard's Raid to South River July 27-31. Flat Rock Bridge July 28. Kilpatrick's Raid around Atlanta August 20-22. Operations at Chattahoochie River Bridge August 26 - September 2. Operations against Hood in North Georgia and North Alabama September 29 - November 3. Near Lost Mountain October 4-7. New Hope Church October 5. Dallas October 7 Rome October 10-11. Narrows October 11. Near Rome October 13. Near Summerville October 18. Little River, Ala., October 20. Leesburg October 21. Ladiga, Terrapin Creek, October 28. Moved to Nashville, Tenn., thence to Louisville, Ky., November 2-15, and duty there refitting till December 26. March to Nashville, Tenn., December 26, 1864, to January 12, 1865, thence to Gravelly Springs, Ala., and duty there till March 13. Wilson's Raid to Macon, Ga., March 22 - April 24. Summerville April 2. Selma April 2. Montgomery April 12. Columbus, Ga., April 16. Macon April 20. Provost duty at Macon till May 33. Moved to Edgefield and duty there till June, 1865.
Mustered out June 27 and discharged at Springfield, Ill., July 7, 1865.
Regiment lost during service 30 Enlisted men killed and mortally wounded and 5 Officers and 136 Enlisted men by disease. Total 171.