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United States Army > Army of the Potomac

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August 1861 • to September >

Commanded by Major General Nathaniel P. Banks

Transferred from Department of the Shenandoah August 17, 1861

First Brigade	Col. George H. Thomas (8/17 – 8/28) Colonel George H. Gordon
5th Connecticut Infantry Regiment	Colonel Orris S. Ferry	from 1st Brig. Dept. Shenandoah
1st Maryland Infantry Regiment	Colonel John R. Kenly	from Dix’s Division, Baltimore
2nd Massachusetts Infantry Regiment	Col. George Gordon (until 8/28) Lt. Colonel George Andrews	from 2nd Brig. (below)
19th New York Infantry Regiment	Col. John Clarke (until Aug.) Colonel James Ledlie	from 1st Brig. Dept. Shenandoah
28th New York Infantry Regiment	Colonel Dudley Donnelly	from 1st Brig. Dept. Shenandoah
13th Pennsylvania Reserves Infantry	Colonel Charles Biddle	from 1st Brig. Dept. Shenandoah
28th Pennsylvania Infantry Regiment	Colonel John Geary	from 1st Brig. Dept. Shenandoah
Second Brigade	Colonel John J. Abercrombie (to BG 8/30)
4th Connecticut Infantry Regiment	Colonel Levi Woodhouse	from 2nd Brig. Dept. Shenandoah
12th Indiana Infantry Regiment		from 2nd Brig. Dept. Shenandoah
16th Indiana Infantry Regiment		from 2nd Brig. Dept. Shenandoah
2nd Massachusetts Infantry Regiment	Colonel George H. Gordon	from 2nd Brig. Dept. Shenandoah to 1st Brig. (above)
12th Massachusetts Infantry Regiment	Colonel Fletcher Webster	from 2nd Brig. Dept. Shenandoah
Third Brigade	Col. C. P. Stone
13th Massachusetts Infantry Regiment	Colonel Samuel H. Leonard	from Massachusetts 8/1
9th New York State Militia Regiment	Colonel John W. Stiles	from 3rd Brig. Dept. Shenandoah
29th Pennsylvania Infantry Regiment	Colonel John K. Murphy	from Philadelphia 8/3; from 2nd Brig. Dept. Shenandoah
3rd Wisconsin Infantry Regiment	Colonel Samuel H. Leonard	from 3rd Brig. Dept. Shenandoah