The 116th Pennsylvania Infantry Regiment lost 8 officers and 137 enlisted men killed or mortally wounded and 1 officer and 88 enlisted men to disease during the Civil War. It is honored by a monument at Gettysburg.
|June 11-September 4||Organized at Philadelphia|
|August 31||Left State for Washington, D.C.|
|September 7||Moved to Rockville, Md.|
|September 21||Moved to Fairfax Court House|
|October 6||Moved to Harper’s Ferry, W. Va.
Attached to 2nd Brigade, 1st Division, 2nd Army Corps, Army of the Potomac, the Irish Brigade
|October 29-November 17||Advance up Loudon Valley and movement to Falmouth, Va.|
Colonel Heenan was wounded in the arms and hand, but after having his wound treated returned to the regiment as it withdrew from the field, carrying the colors.
The regiment is honored on a monument to the Irish Brigade on the Fredericksburg waterfront at the City Dock. From the monument:
While posted here in the early morning of Dec. 13, 1862, the men of the Irish Brigade placed sprigs of boxwood in their caps in honor of their Irish heritage. Later in the day, they took part in the futile assaults against confederate positions on Marye’s Heights. After the battle, the Union dead closest to the Confederate positions wore sprigs of boxwood in their caps.
|January 20-24||Burnside’s 2nd Campaign, “Mud March.” The regiment was consolidated to a battalion of four companies, and Colonel Heenan was honorably mustered out as no longer having a command due his rank. Lieutenant Colonel Mulholland took a cut in grade to major to be able to stay with the battalion.|
|April 27-May 6||Chancellorsville Campaign|
Battle of Chancellorsville
Major St. Clair A. Mulholland was awarded the Medal of Honor. According to his citation, while “in command of the picket line held the enemy in check all night to cover the retreat of the Army.”
|June 11-July 24||Gettysburg Campaign|
Battle of Gettysburg
The battalion was commanded by Major St. Clair A. Mulholland. From the monument on the Storny Hill:
July 2, 1863. In action 142 officers and men. Killed and wounded 37.
|July 5-24||Pursuit of Lee|
|September 13-17||Advance from Rappahannock to the Rapidan|
|October 9-22||Bristoe Campaign|
|October 14||Auburn and Bristoe|
|November 7-8||Advance to line of the Rappahannock|
|November 26-December 2||Mine Run Campaign|
|February 6-7||Demonstration on the Rapidan|
|February-May||Duty at Stevensburg|
|May 4-June 12||Rapidan Campaign|
|May 10||Po River|
|May 12||Assault on the Salient|
|May 23-26||North Anna River|
|May 26-28||On line of the Pamunkey|
First Assault on Petersburg
Beginning of Siege of Petersburg. Attached to 4th Brigade, 1st Division, 2nd Army Corps.
|June 22-23||Jerusalem Plank Road|
|July 27-29||Demonstration on north side of the James River|
|July 27-28||Deep Bottom|
|July 30||Mine Explosion, Petersburg (Reserve)|
|August 13-20||Demonstration on north side of James River at Deep Bottom|
|August 14-18||Strawberry Plains, Deep Bottom|
|August 25||Ream’s Station|
|October 27||Front of Forts Morton and Sedgwick|
|December 9-10||Reconnaissance to Hatcher’s Run|
|February 5-7||Dabney’s Mills|
|March 25||Watkins’ House, Petersburg|
|March 28-April 9||Appomattox Campaign|
|April 2||Sutherland Station and Fall of Petersburg|
|April 6||Sailor’s Creek|
|April 7||High Bridge, Farmville|
Appomattox Court House
Surrender of Lee and his army.
|May 2-12||March to Washington, D. C.|
|May 23||Grand Review|
|June 3||Companies A, B, C and D mustered out|
|July 14||Companies E, F, G, H, I and K mustered out|