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Battles of Manassas • Tour the Battlefield • Monuments • The Armies

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Commanded by Brigadier General Irvin McDowell

Chief of Artillery – Major William F.Barry
Chief Engineer – Major John G. Barnard
Chief Quartermaster – Captain Otis H. Tillinghast (mw)

First Brigade – Colonel Erasmus Keyes

1st Connecticut Infantry Regiment – Lieutenant Colonel John Speidel
2nd Connecticut Infantry Regiment – Colonel Alfred H. Terry
3rd Connecticut Infantry Regiment – Colonel John Chatfield
2nd Maine Infantry Regiment – Colonel Charles D. Jameson

Second Brigade – Brigadier General Robert C. Schenck (United States Volunteers)

2nd New York State Militia – Colonel G. W. B. Tompkins
1st Ohio Infantry Regiment – Colonel Alexander McCook
2nd Ohio Infantry Regiment – Colonel L. Wilson, Lt. Colonel Rodney Mason
New York Artillery, Battery B – Captain Thaddeus P. Mott
1st United States Artillery, Battery G, 2nd Section – Lieutenant Peter C. Hains
2nd United States Artillery, Battery E – Captain James Carlisle

Third Brigade – Colonel William T. Sherman

13th New York Infantry Regiment – Colonel Isaac F. Quinby
69th New York State Militia – Colonel Michael Corcoran (w/c 7/21), Captain James Kelly
79th New York Infantry Regiment – Colonel J. Cameron (k 7/21), Lieutenant Colonel S.M. Elliott
2nd Wisconsin Infantry Regiment – Colonel P. S. Coon, Lieutenant Colonel Henry W. Peck
3rd United States Artillery, Battery E – Captain Romeyn B. Ayers

Fourth Brigade – Colonel Israel Richardson

1st Massachusetts Infantry Regiment – Colonel R. Cowdin
12th New York Infantry Regiment – Colonel E. L. Walrath
2nd Michigan Infantry Regiment – Major A. W. Williams
3rd Michigan Infantry Regiment – Colonel D. McConnel. Lieutenant Colonel Stevens
1st United States Artillery, Battery G – Lieutenant J. Edwards
2nd United States Artillery, Battery M – Captain H. J. Hunt

2nd Division – Colonel David Hunter

First Brigade – Colonel Andrew Porter

8th New York State Militia – Colonel G. Lyons
14th New York State Militia – Colonel A. M. Wood (w 7/21), Lt. Colonel Edward B. Fowler
27th New York Infantry Regiment – Colonel Henry W. Slocum (w 7/21), Major Joseph J. Bartlett
United States Infantry Battalion (8 companies) – Major George Sykes
    2nd United States Infantry, Cos. C & K
    3rd U.S., Cos. B, D, G, H & K
    8th U. S., Co. G 
United States Cavalry Battalion (7 companies) – Major Innis N. Palmer
    1st United States Cavalry, Cos. A & E
    2nd U. S. Dragoons, Co. K
    2nd U. S. Cavalry, Cos. B, E, G & I 
United States Marine Battalion (4 companies) – Major John G. Reynolds
5th United States Artillery, Battery D – Captain Charles Griffin

Second Brigade – Colonel Ambrose Burnside

2nd New Hampshire Infantry Regiment – Colonel Gilman Marston (w 7/21), Lt. Colonel Frank S. Fiske
1st Rhode Island Infantry Regiment – Major J. P. Balch
2nd Rhode Island Infantry Regiment – Colonel J. S. Slocum (k 7/21), Lt. Colonel F. Wheaton
1st Rhode Island Artillery, Battery A – Captain William H. Reynolds
71st New York Infantry Regiment – Colonel H. P. Martin

3rd Division – Colonel Samuel P. Heintzelman

First Brigade – Colonel William B. Franklin

5th Massachusetts Infantry Regiment – Colonel S. C. Lawrence (w 7/21)
11th Massachusetts Infantry Regiment – Colonel G. Clark
1st Minnesota Infantry Regiment – Colonel W. A. Gorman
1st United States Artillery, Battery I – Captain J. B. Ricketts (w&c 7/21), Lieutenant E. Kirby

Second Brigade – Colonel Orlando B. Wilcox (w&c 7/21), Colonel J. H. Hobart Ward

11th New York Infantry Regiment – Colonel Noah L. Farnham (mw 7/21), Lieutenant Colonel John A. Cregier
38th New York Infantry Regiment – Colonel J. H. Ward (^ 7/21), Lieutenant Colonel Addison Farnsworth
1st Michigan Infantry Regiment – Major A. F. Bidwell
4th Michigan Infantry Regiment – Colonel D. A. Woodbury
2nd United States Artillery, Battery D – Captain Richard Arnold

Third Brigade Colonel Oliver O. Howard

3rd Maine Infantry Regiment – Major H. G. Staples
4th Maine Infantry Regiment – Colonel H. G. Berry
5th Maine Infantry Regiment – Colonel M. H. Dunnell
2nd Vermont Infantry Regiment – Colonel H. Whiting

4th Division – Brigadier General Theodore Runyon

1st New Jersey State Militia – Colonel Adolphus J. Johnson
2nd New Jersey State Militia – Colonel Henry M. Baker
3rd New Jersey State Militia – Colonel William Napton
4th New Jersey State Militia – Colonel Matthew Miller, Jr.
1st New Jersey Infantry Regiment – Colonel William R. Montgomery
2nd New Jersey Infantry Regiment – Colonel George W. McLean
3rd New Jersey Infantry Regiment – Colonel George W. Taylor
41st New York Infantry Regiment – Colonel Leopold Von Gilsa

5th Division – Colonel Dixon S. Miles

First Brigade – Colonel Louis Blenker

8th New York Infantry Regiment – Lieutenant Colonel J. Stahel
29th New York Infantry Regiment – Colonel Adolph Von Steinwehr
39th New York Infantry Regiment – Colonel Frederick G. D’Utassy
27th Pennsylvania Infantry Regiment – Colonel Max Einstein
2nd United States Artillery, Battery A – Captain J. C. Tidball
Bookwood’s New York Battery – Captain Charles Bookwood (29th NY)
The guns of the Varian’s Battery (mustered out) were manned by men of the 8th and 29th New York on 7/21

Second Brigade – Colonel T. Davies

16th New York Infantry Regiment – Lieutenant Colonel S. Marsh
18th New York Infantry Regiment – Colonel William A. Jackson
31st New York Infantry Regiment – Colonel Calvin E. Pratt
32nd New York Infantry Regiment – Colonel Roderick Matheson
2nd United States Artillery, Battery G – Lieutenant O. D. Greene