U.S. Army - Army of the Potomac

McDowell's Division

Bde. Gen. Irwin McDowell

First Brigade

Bde. Gen. E. D. Keyes

22nd New York Infantry Regiment

Colonel Walter Phelps

from Keyes' Brigade, Div. Potomac

24th New York Infantry Regiment

Colonel Timothy Sullivan

30th New York Infantry Regiment

Colonel Edward Frisby

14th New York State Militia

Colonel Alfred M. Wood

Second Brigade

Bde. Gen. J. S. Wadsworth

12th New York Infantry Regiment

Colonel Ezra L. Walrath (res. 9/25)

Lt. Colonel Robert M. Richardson

from Richardson's Bde., Div. Potomac

21st New York Infantry Regiment

Colonel William F. Rogers

from Fort Runyon, Div. Potomac

23rd New York Infantry Regiment

Colonel Henry C. Hoffman

from Hunter's Bde., Div. Potomac

35th New York Infantry Regiment

Colonel Newton B. Lord

from Hunter's Bde., Div. Potomac

Third Brigade

Bde. Gen. Rufus King

2nd Wisconsin Infantry Regiment

Colonel Edgar O'Connor

from Fort Corcoran, Div. Potomac

6th Wisconsin Infantry Regiment

Colonel Lysander Cutler

from Defenses of Washington

19th Indiana Infantry Regiment

Colonel Solomon Meredith

from Defenses of Washington

Artillery and Cavalry

Battery G, 1st United States Artillery

from Richardson's Bde., Div. Potomac

Battery M, 2nd United States Artillery

from Franklin's Bde., Div. Potomac

2nd New York Cavalry Regiment

Colonel J. Mansfield Davies