The 157th Pennsylvania Infantry Regiment lost 31 enlisted men killed or mortally wounded and 34 enlisted men to disease during the Civil War.

1862
October, Organized at Philadelphia
December Moved to Fort Delaware and duty there
1863
February Moved to Washington, D.C. and duty in the Defenses attached to Tyler’s Division, 22nd Corps
1864
May 29 Ordered to Join Army of the Potomac in the field; attached to 2nd Brigade, 4th Division, 5th Army Corps, Army of the Potomac
June 1-12 Battles about Cold Harbor
June 1-3 Bethesda Church
June 16-18 Before Petersburg
June 16 Siege of Petersburg
July 30 Mine Explosion, Petersburg (Reserve)
August Attached to 3rd Brigade, 2nd Division, 5th Army Corps
August 18-21 Weldon Railroad
September 29-October 2 Poplar Springs Church
October 1-3 Yellow House
October 27-28 Boydton Plank Road, Hatcher’s Run
December 7-12 Warren’s Raid on Weldon Railroad
1865
February 5-7 Dabney’s Mills, Hatcher’s Run
March 21 Regiment transferred to 191st Pennsylvania Infantry