15th Ohio Infantry (3 Yrs.)

Organized at Mansfield, Ohio, September, 1861. Moved to Camp Dennison, Ohio, September 26, thence to Lexington, Ky., October 4. Duty at Camp Nevin, Ky., October 14-December 9, 1861. Attached to McCook's Command at Nolin October to November, 1861. 6th Brigade, Army of the Ohio, to December, 1861. 6th Brigade, 2nd Division, Army Ohio, to September, 1862. 6th Brigade, 2nd Division, 1st Army Corps, Army Ohio, to November, 1862. 1st Brigade, 2nd Division, Right Wing 14th Army Corps, Army of the Cumberland, to January, 1863. 1st Brigade, 2nd Division, 20th Army Corps, Army of the Cumberland, to October, 1863. 1st Brigade, 3rd Division, 4th Army Corps, to August, 1865. Dept. of Texas to November, 1865.

SERVICE.--Occupation of Munfordsville, Ky., December 10, 1861. Duty at Bacon Creek, Ky., till February 14, 1862. Advance to Bowling Green, Ky., and Nashville, Tenn., February 14-March 2. March to Savannah, Tenn., March 16-April 6. Battle of Shiloh April 6-7. Advance on and siege of Corinth, Miss., April 29-May 30. March to Battle Creek, Ala., June 10-July 18, and duty there till August 20. March to Louisville, Ky., in pursuit of Bragg, August 20-September 26. Pursuit of Bragg into Kentucky October 1-15. March to Nashville, Tenn., October 16-November 7, and duty there till December 26. Advance on Murfreesboro, Tenn., December 26-30. Battle of Stone's River December 30-31, 1862, and January 1-3, 1863. Duty at Murfreesboro till June. Reconnoissance from Murfreesboro March 6-7. Middle Tennessee or Tullahoma Campaign June 22-July 7. Liberty Gap June 22-27. Occupation of Middle Tennessee till August 16. Passage of the Cumberland Mountains and Tennessee River, and Chickamauga (Ga.) Campaign August 16-September 22. Battle of Chickamauga 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, Tenn., November 28-December 8. Operations in East Tennessee till February, 1864. At Cleveland, Tenn., till April. Atlanta (Ga.) Campaign May 1-September 8. Demonstrations on Rocky Faced Ridge and Dalton May 8-13. 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 line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills May 25-June 5. Pickett's Mills May 27. 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. Operations against Hood in North Georgia and North Alabama September 29-November 3. Nashville Campaign November-December. 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. Camp at Bird Springs, Ala., till March, 1865. Operations in East Tennessee March 15-April 22. At Nashville, Tenn., till June. Moved to New Orleans, La., June 16, thence to Texas. Duty at Green Lake till August 10, and at San Antonio till November. Mustered out November 21, 1865. Reach Columbus, Ohio, December 25, and discharged from service December 27, 1865.

Regiment lost during service 7 Officers and 172 Enlisted men killed and mortally wounded and 1 Officer and 135 Enlisted men by disease. Total 315.

SOURCE: Dyer , Frederick H., A Compendium Of The War Of The Rebellion, Part 3, p. 1503