Army of the Ohio
The regiment was attached to Thomas' Command, Army of the Ohio, October–November 1861. 2nd Brigade, Army of the Ohio, to December 1861. 2nd Brigade, 1st Division, Army of the Ohio, to September 1862. 2nd Brigade, 1st Division, III Corps, Army of the Ohio, to November 1862. 2nd Brigade, 3rd Division, Center, XIV Corps, Army of the Cumberland, to January 1863. 2nd Brigade, 3rd Division, XIV Corps, Army of the Cumberland, to October 1863. 3rd Brigade, 3rd Division, XIV Corps, to December 1863. Garrison duty, Chattanooga, Tennessee, Department of the Cumberland, to April 1864. 3rd Brigade, 3rd Division, XIV Corps, to September 1864.