The 147th Pennsylvania Infantry was organized at Loudoun Heights, Virginia from surplus companies of the 28th Pennsylvania Infantry and mustered in as Companies A, B, C, D, and E for a three-year enlistment on October 10, 1862 under the command of Colonel Ario Pardee Jr. Companies F, G, and H were organized at Harrisburg, Pennsylvania September 29 through November 20, 1862.
1st Brigade, 2nd Division, XX Corps, Army of the Cumberland, to July 1865.
The 147th Pennsylvania Infantry mustered out of service on July 15, 1865.
Reconnaissance to Rippon, Va., November 9, and to Winchester, Va., December 2–6.
Burnside's 2nd Campaign, "Mud March," January 20–24.
Ringgold Gap, Taylor's Ridge, November 27.
Guard duty on Nashville & Chattanooga Railroad until April 1864.
Expedition down the Tennessee River to Triana, Ala., April 12–16.
Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church, and Allatoona Hills May 26-June 5.
Ruff's Station, Smyrna Camp Ground, July 4.
Operations at Chattahoochie River Bridge August 26-September 2.
Red Bank and Congaree Creek February 15 Averysboro, N.C., March 16.