The 87th Indiana Infantry was organized at South Bend, Indiana and mustered in for a three-year enlistment on August 31, 1862, under the command of Colonel Kline G. Shryock.
The regiment was attached to 3rd Brigade, 1st Division, Army of the Ohio, September 1862.
3rd Brigade, 1st Division, III Corps, Army of the Ohio, to November 1862.
3rd Brigade, 3rd Division, Center, XIV Corps, Army of the Cumberland, to January 1863.
3rd Brigade, 3rd Division, XIV Corps, Army of the Cumberland, to October 1863.
2nd Brigade, 3rd Division, XIV Corps, to June 1865.
The 87th Indiana Infantry mustered out of service on June 10, 1865.
Pursuit of Bragg to Crab Orchard, Kentucky, October 1–15, 1862.
Duty South Tunnel, Pilot Knob, and Gallatin, Tennessee, November 8–26, and guarding fords of the Cumberland until January 29, 1863.
Passage of the Cumberland Mountains and Tennessee River and Chickamauga Campaign August 16-September 22.
Tunnel Hill, Buzzard's Roost Gap, and Rocky Faced Ridge February 23–25.
Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church, and Allatoona Hills May 25-June 5.