The 72nd Ohio Infantry was organized in Fremont, Ohio October 1861 through February 1862 and mustered in for three years service under the command of Colonel Ralph Pomeroy Buckland.
The regiment was attached to District of Paducah, Kentucky, to March 1862.
3rd Brigade, 5th Division, District of Memphis, Tennessee, to November 1862.
5th Brigade, 5th Division, District of Memphis, Right Wing, XIII Corps, Department of the Tennessee, November 1862.
3rd Brigade, 1st Division, District of Memphis, XIII Corps, to December 1862.
1st Brigade, 3rd Division, XV Corps, Army of the Tennessee, to December 1863.
1st Brigade, 1st Division, Detachment Army of the Tennessee, Department of the Cumberland, to February 1865.
The 72nd Ohio Infantry mustered out of service at Vicksburg, Mississippi, on September 11, 1865.
Moved to Camp Chase, Ohio, January 24, then to Paducah, Ky.
Expedition from Savannah to Yellow Creek, Miss., and occupation of Pittsburg Landing, Tenn., March 14–17.
March to Memphis, Tenn., via La-Grange, Grand Junction, and Holly Springs June 1-July 21.
Operations against Forrest in western Tennessee and Kentucky March 16-April 14.
Battle of Brices Cross Roads, near Guntown, June 10.
March through Arkansas and Missouri in pursuit of Price September 17-November 16.