The 151st Pennsylvania Infantry Regiment lost 2 officers and 67 enlisted men killed or mortally wounded and 1 officer and 53 enlisted men to disease during the Civil War.

It is honored by a monument at Gettysburg.

1862
October 18 -November 24 Organized at Harrisburg for nine months service
November 26 Moved to Washington, D.C. Attached to 3rd Brigade, Casey’s Division, Defenses of Washington
1863
February Moved to Belle Plains, Va., and attached to 1st Brigade, 3rd Division, 1st Army Corps, Army of the Potomac
April 27-May 6 Chancellorsville Campaign
April 29-May 2 Operations about Pollock’s Mill Creek
May 2-5 Battle of Chancellorsville
May Colonel Harrison Allen goes on furlough due to illness.
June 11-July 24 Gettysburg Campaign
July 1-3
Battle of Gettysburg

The regiment was commanded by Lieutenant Colonel George F. McFarland until he was wounded and temporarily captured on July 1st, losing his leg. Captain Walter L. Owens then took command.

From the monument:

July 1. Fought here and in the Grove west of the Theological Seminary. July 2. In reserve on Cemetery Hill. July 3. In position on left centre and assisted in repulsing the charge of the enemy in the afternoon.

Present at Gettysburg, officers 21, men 446. Killed and mortally wounded, officers 2, men 79. Wounded, officers 9, men 172. Captured or missing, officers 4, men 71. Total loss officers 15, men 322.

The regiment had the second highest casualty total of all Union regiments at Gettysburg (following the 24th Michigan).

July 5-19 Pursuit of Lee
July 19 Sent to Harrisburg
July 27 Mustered out