U.S. Army -22nd Army Corps - Department of Washington

Defences South of the Potomac

Colonel H. G. Sickel

First Brigade

Col. A. A. Gibson

3rd Maine Independent Battery

2nd Pennsylvania Heavy Atillery

1st Vermont Heavy Artillery

Second Brigade

Colonel H. C. Bollinger

1st Maine Heavy Artillery

7th New York Heavy Artillery

9th New York Heavy Artillery

9th New York Independent Battery

117th New York Infantry, 2nd Battalion