The headquarters monument for the 1st Brigade, 3rd Division of the 1st Army Corps is west of Gettysburg on South Reynolds Avenue. (39.831681° N, 77.251206° W; Google map; Tour map: South Reynolds Avenue)
From the monument:
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 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