4th Brigade
First Division, Second Corps

The marker is south of Gettysburg on Brooke Avenue.
Location: 39.795261 N, 77.247054 W; see map

From the monument:

Army of the Potomac
Second Corps First Brigade
Fourth Brigade
Col. John R. Brooke
27th Connecticut (2 Cos.)
2d Delaware 64th NewYork
53d 145th (7 Cos.) Pennsylvania Infantry

July 2. Arrived early in the morning took position on the line from Cemetery Hill to Round Top and was the right Brigade of Division. Between 5 and 6 P. M. went with Division to Wheatfield and advanced in reserve until the Division had forced back the Confederates to the further end when the Brigade advanced on the left of Third Brigade across a marsh to crest of a wooded hill. The Union line along the Emmitsburg Road having soon thereafter been forced back by Brig. Gen. Semmes's Brig. Gen. Kershaw's and Brig. Gen. Wofford's Brigades which advanced in front and on the left flank the Brigade retired with the Division and resumed its former place in Corps line.

July 3. Constructed entrenchments and remained in former position until the close of the battle.

Casualties Killed 8 Officers 46 Men Wounded 38 Officers 246 Men Captured or Missing 51 Men Total 389