1st Brigade
3rd Division, 1st Corps

The headquarters monument for the First Brigade, Third Division of the First Army Corps is west of Gettysburg on South Reynolds Avenue.

From the monument:

Army of the Potomac
First Corps Third Division
First Brigade
Col. Chapman Biddle
Brig. Gen. Thomas A. Rowley
80th New York 121st 142d 151st Penna. Infantry

July 1. Arrived and went into position about 11.30 a.m. left of Reynolds's Woods. The 151st Penna. having been sent to reinforce Second Brigade on right of Reynolds's Woods. The remaining regiments with Battery B 1st Penna. formed line facing west and held this position until near 4 p.m. when being pressed with superior numbers in front and outflanked on the left the Brigade retired to Seminary Ridge. On the withdrawal of the Corps the Brigade retired to Cemetery Hill and formed on the left along Taneytown Road and remained there until noon the next day.

July 2. Between 5 and 6 p.m. the Brigade was moved to the left centre from which First Division Second Corps had been taken to support Third Corps.

July 3. Remained in the same position and assisted in repelling Longstreet's assault in the afternoon taking many prisoners. At 6 p.m. withdrew to former position on Taneytown Road.

Casualties Killed 8 Officers 103 Men Wounded 41 Officers 516 Men Captured or Missing 8 Officers 222 Men Total 898