United States Armies in the East > Department of Washington


< to May •  June 1861 • to July >

Commanded by Colonel Joseph K. F. Mansfield

1st Connecticut Infantry Regiment Lieutenant Colonel Speidel to Dept. NE Va. – 1 Div. – 1 Brig.
2nd Connecticut Infantry Regiment Colonel A. H. Terry to Dept. NE Va. – 1 Div. – 1 Brig.
3rd Connecticut Infantry Regiment Colonel J. Chatfield to Dept. NE Va. – 1 Div. – 1 Brig.
1st New Hampshire Infantry Regiment Colonel Mason Tappan to Stone’s Command 6/10 (below)
5th Massachusetts Infantry Regiment Colonel S. C. Lawrence
1st Michigan Infantry Regiment Colonel O. O. Wilcox to Dept. NE Va. – 3 Div. – 1 Brig. 6/1
1st Minnesota Infantry Regiment Colonel W. A. Gorman from Minnesota 6/26
1st New Jersey State Militia Colonel A. J. Johnson
2nd New Jersey State Militia Colonel H. M. Baker
3rd New Jersey State Militia Colonel W. Napton
4th New Jersey State Militia Colonel M. Miller
5th New York State Militia Colonel C. Schwarzwaelder
8th New York State Militia Colonel George Lyons from Dept. Annapolis 6/8
to Dept. NE Va. – 2 Div. – 1 Brig.
9th New York State Militia Colonel John W. Stiles to Stone’s Command 6/10 (see below)
11th New York Infantry Regiment Colonel N. L. Farham
12th New York State Militia Colonel Daniel Butterfield
14th New York State Militia Colonel A. M. Wood to Dept. NE Va. – 2 Div. – 1 Brig.
14th New York Infantry Regiment Colonel J. McQuade from New York 6/18
17th New York Infantry Regiment Colonel H. Seymour Lansing from New York 6/5
19th New York Infantry Regiment Colonel John S. Clarke arrived from New York 6/23
21st New York Infantry Regiment Colonel William F. Rogers from New York 6/19
24th New York Infantry Regiment Colonel E. Frisby from New York 6/29
25th New York State Militia
Colonel M. K. Bryan
26th New York Infantry Regiment Colonel William H. Christian arrived from New York 6/20
28th New York Infantry Regiment Colonel Dudley Donnelly arrived from New York 6/26
37th New York Infantry Regiment Colonel John H. McCunn arrived from New York 6/24
69th New York State Militia Colonel Michael Corcoran to Dept. NE Va. – 1 Div. – 1 Brig.
71st New York State Militia
Colonel H. P. Martin to Dept. NE Va. – 2 Div. – 2 Brig.
1st Ohio Infantry Regiment Colonel A. McCook to Dept. NE Va. – 1 Div. – 1 Brig.
2nd Ohio Infantry Regiment Colonel L. Wilson to Dept. NE Va. – 1 Div. – 1 Brig.
4th Pennsylvania Infantry Regiment Colonel John Hartranft to Dept. NE. – 3 Div. – 1 Brig.
17th Pennsylvania Infantry Regiment Colonel Francis E. Patterson to Stone’s Command 6/10 (below)
25th Pennsylvania Infantry Regiment Colonel Henry L. Cake Cos. D, F, G, I & K to Stone’s Command 6/30 (below)
Cos. A, B, C, E, H remained in D.C.
26th Pennsylvania Infantry Regiment Colonel William F. Small from Philadelphia 6/15
27th Pennsylvania Infantry Regiment Colonel M. Einstein from Philadelphia 6/17
to Dept. NE Va. – 1 Div. – 1 Brig.
1st Rhode Island Infantry Regiment Colonel A. Burnside to Dept. NE Va. – 2 Div. – 2 Brig.
4th United States Artillery Battery F Lieutenant Alexander Piper  to Stone’s Command 6/10 (below)
Stone’s Command Colonel Charles P. Stone
1st New Hampshire Infantry Regiment Colonel Mason Tappan from Dept. Washington 6/10 (see above)
9th New York State Militia Regiment Colonel John W. Stiles
17th Pennsylvania Infantry Regiment Colonel Francis E. Patterson
25th Pennsylvania Infantry Regiment
(Companies D, F, G, I and K)
Colonel Henry L. Cake
District of Columbia Infantry (detatchments) Captain Smead
United States Cavalry Captain Magruder
4th United States Artillery Battery F Lieutenant Alexander Piper