U.S. Army - Army of Virginia - Third Corps

Third Division

Brigadier General John F. Reynolds

Transferred from the Army of the Potomac, 5th Army Corps, 8/25

First Brigade

Bde. Gen. Truman Seymour

1st Pensylvania Reserves Regiment

2nd Pensylvania Reserves Regiment

5th Pensylvania Reserves Regiment

6th Pensylvania Reserves Regiment

Second Brigade

Bde. Gen. George G. Meade

3rd Pensylvania Reserves Regiment

4th Pensylvania Reserves Regiment

7th Pensylvania Reserves Regiment

8th Pensylvania Reserves Regiment

13th Pensylvania Reserves Regiment

Third Brigade

Bde. Gen. C. F. Jackson (until 8/30)

Lt. Colonel Robert Andrson (after 8/30)

9th Pensylvania Reserves Regiment

10th Pensylvania Reserves Regiment

11th Pensylvania Reserves Regiment

12th Pensylvania Reserves Regiment

Artillery

Battery A, 1st Pennsylvania Artillery

Battery B, 1st Pennsylvania Artillery

Battery G, 1st Pennsylvania Artillery

Battery C, 5th United States Artillery