Artillery, 5th Division, District of Memphis, Tennessee, to November 1862.
Artillery, 2nd Division, District of Memphis, Right Wing, XIII Corps, Department of the Tennessee, to December 1862.
Artillery, 2nd Division, Sherman's Yazoo Expedition, to January 1863.
Artillery, 2nd Division, XV Corps, Army of the Tennessee, to September 1863.
The 8th Ohio Battery mustered out of service at Camp Dennison on August 7, 1865.
Assault on and capture of Fort Hindman, Arkansas Post, January 10–11.
Expedition to Rolling Fork via Muddy, Steele's and Black Bayous, and Deer Creek March 14–27.
Moved to join army in rear of Vicksburg via Richmond and Grand Gulf May 2–14.