115th Regiment, Illinois InfantryOVERVIEW:Organized at Camp Butler, Ill., and mustered in September 13, 1862. Moved to Cincinnati, Ohio, and Covington, Ky., October 4-6, 1862. Attached to 2nd Brigade, 3rd Division, Army of Kentucky, Dept. of the Ohio, to February, 1862. 2nd Brigade, Baird's 3rd Division, Army of the Kentucky, Dept. of the Cumberland, to June, 1863. 1st Brigade, 1st Division, Reserve Corps, Army of the Cumberland, to October, 1863. 1st Brigade, 2nd Division, 4th Army Corps, October, 1863. 2nd Brigade, 1st Division, 4th Army Corps, to June, 1865.
SERVICE:Duty at Covington, Ky., till October 20, 1862, operating against Kirby Smith's threatened attack on Cincinnati. March to Richmond, Ky., October 20-25, thence to Danville December 21, and duty there till January 26. 1863. Pursuit of Morgan to Lebanon Junction December 26-31, 1862. Moved to Louisville, Ky., January 26-31, 1863; thence to Nashville, Tenn., January 31-February 8. Repulse of Wheeler's attack on Fort Donelson, Tenn., February 4. At Nashville till March 5. Moved to Franklin, Tenn., and pursuit of Van Dorn March 5-12. Spring Hill March 10. At Brentwood March 27-April 8. Return to Franklin April 8, and repulse of Van Dorn's attack April 10. At Franklin till June 2. Moved to Triune June 2. Action at Triune with Wheeler June 11. Middle Tennessee (or Tullahoma) Campaign June 24-July 7. At Wartrace July 3-August 12, and at Elk River till September 7. Chickamauga (Ga.) Campaign September 7-22. Ringgold, Ga., September 17. Battle of Chickamauga, Ga., September 19-20. Siege of Chattanooga September 24-October 26. Reopening Tennessee River October 26-29. Battle of Wauhatchie, Tenn., October 28-29. Duty in Lookout Valley till December 1. At Nickajack Cove, Ga., till February, 1864. Demonstration on Dalton, Ga., February 22-27. Tunnel Hill, Buzzard's Roost Gap and Rocky Faced Ridge February 23-25. At Cleveland, Tenn., March and April. Atlanta (Ga.) Campaign May 1-September 8. Tunnel Hill May 6-7. Demonstration on Rocky Faced Ridge May 8-11. Buzzard's Roost Gap May 8-9. Demonstrations 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, Smyrna Camp Ground, 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. Operations against Hood in North Georgia and North Alabama September 29-November 3. Buzzard's Roost Block House October 13 (1 Company). Nashville Campaign November-December. Columbia, Tenn., December 23. Columbia, Duck River, November 24-27. Battle of Franklin November 30. Battle of Nashville December 15-16. Pursuit of Hood to the Tennessee River December 17-28. Moved to Huntsville, Ala., and duty there till March, 1865. Expedition to Bull's Gap and operations in East Tennessee March 20-April 22. Moved to Nashville, Tenn., and duty there till June. Mustered out at Nashville June 11 and discharged at Camp Butler, Ill., June 23, 1865.
Regiment lost during service 6 Officers and 58 Enlisted men killed and mortally wounded and 2 Officers and 147 Enlisted men by disease. Total 213.