The 145th Pennsylvania Infantry Regiment lost 18 officers and 187 enlisted men killed or mortally wounded and 3 officers and 214 enlisted men to disease during the Civil War. It is honored by a monument at Gettysburg.

1862
September 5 Organized at Erie
September 11-12 Moved to Chambersburg. Pa
September 15-17 Moved to Hagerstown and Antietam, Md. and attached to 2nd Brigade, 1st Division, 2nd Army Corps, Army of the Potomac
September 22 Moved to Harper’s Ferry, W. Va. and duty there
October 16-17 Reconnaissance to Charlestown. Attached to 1st Brigade, 1st Division, 2nd Army Corps
October 29-November 17 Advance up Loudoun Valley and movement to Falmouth, Va.
December 12-15
Battle of Fredericksburg
December Duty at Falmouth, Va.
1863
April 27 Chancellorsville Campaign; attached to 4th Brigade, 1st Division, 2nd Army Corps
May 1-5
Battle of Chancellorsville
June 11 Gettysburg Campaign
July 1-3
Battle of Gettysburg

Colonel Hiram L. Brown commanded the 145th until he was wounded during the fighting on the 2nd. Capt. John W. Reynolds then took command until he, too was wounded, when Capt. Moses Oliver took over.

From the monument:

July 2nd. In the evening about 5 O’Clock the Regiment with the Brigade charged from the northerly side of the Wheatfield driving the enemy and capturing many prisoners. This position was held until the command was outflanked when it retired under orders.

July 3. The Regiment was in position on the left center with the Division.

Present at Gettysburg 228 officers and men. Killed and mortally wounded 3 officers 21 men. Wounded 9 officers 50 men. Captured or missing 10 men.

July 5-24 Pursuit of Lee
August Duty on line of the Rappahannock
September 13-17 Advance from the 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
December At Stevensburg
1864
February 6-7 Demonstration on the Rapidan
May 4-June 12 Rapidan Campaign
May 5-7
Battle of the Wilderness
May 8 Corbin’s Bridge
May 8-21
Battle of Spotsylvania Court House
May 10 Po River
May 12 Assault on the Salient
May 23-26 North Anna River
May 26-28 On line of the Pamunkey
May 28-31 Totopotomoy
June 1-12
Cold Harbor
June 16-18 First Assault on Petersburg
June 16 Siege of Petersburg
June 22-23 Jerusalem Plank Road
July 27-29 Demonstration north of the James at Deep Bottom
July 27-28 Deep Bottom
July 30 Mine Explosion, Petersburg (Reserve)
August 13-20 Demonstration on north side of the James at Deep Bottom
August 14-18 Strawberry Plains, Deep Bottom
August 25 Ream’s Station
December 7-10 Reconnaissance to Hatcher’s Run
1865
February 5-7 Dabney’s Mills, Hatcher’s Run
March 25 Watkins’ House
March 28-April 9 Appomattox Campaign
March 29-30 Skirmishes on line of Hatcher’s and Gravelly Runs
March 31 Hatcher’s Run or Boydton Road; Crow’s House
April 2 Sutherland Station
April 6 Sailor’s Creek
April 7 High Bridge, Farmville
April 9
Appomattox Court House

Surrender of Lee and his army.

May 2-12 March to Washington, D.C.
May 23 Grand Review
May 31 Mustered out