United States Army


< to August • September 1861 • to October >

Commanded by Major General George B. McClellan

Banks’ Division Major General Nathaniel P. Banks
1st Brigade Colonel H. Gordon
2nd Brigade Bde. Gen. J. Abercrombie
3rd Brigade Colonel J. W. Stiles
Casey’s Provisional Division Brigadier General Silas Casey
Dix’s Division, Baltimore Major General John Dix
McCall’s Division Brigadier General George McCall
1st Brigade Brigadier General John Reynolds
2nd Brigade Brigadier General George Meade
3rd Brigade Colonel John S. McCalmont
McDowell’s Division Brigadier General Irwin McDowell
1st Brigade Brigadier General E. D. Keyes
2nd Brigade Brigadier General John S. Wadsworth
3rd Brigade Brigadier General Rufus King
Porter’s Division Brigadier General Fitz John Porter
1st Brigade Brigadier General George W. Morrell
2nd Brigade Brigadier General John H. Martindale
3rd Brigade Brigadier General Daniel Butterfield

Unattached Brigades

Blenker’s Brigade Brigadier General Louis Blenker
8th New York Infantry Regiment Lieutenant Colonel Julius Stahel to Blenker’s Brig., Hooker’s Div.
29th New York Infantry Regiment Colonel Adolph Von Steinwehr
39th New York Infantry Regiment Colonel Frederick G. D’Utassy
27th Pennsylvania Infantry Regiment Colonel M. Einstein
2nd New York Independent Battery Captain C. Bookwood
4th New York Cavalry Regiment Colonel Christian F. Dickel
Couch’s Brigade Brigadier General Darius N. Couch
7th Massachusetts Infantry Regiment Colonel Darius Couch (to 9/3)
Colonel Nelson H. Davis
to Couch’s Brig., Buell’s Div.
10th Massachusetts Infantry Regiment Colonel Henry S. Briggs
36th New York Infantry Regiment Colonel C. H. Innes
2nd Rhode Island Infantry Regiment Colonel Frank Wheaton
Franklin’s Brigade Brigadier General William B. Franklin
15th New York Infantry Regiment Colonel J. McLeod Murphy to Newton’s Brig., Franklin’s Div.
18th New York Infantry Regiment Colonel William A. Jackson
31st New York Infantry Regiment Colonel Calvin E. Pratt
32nd New York Infantry Regiment Colonel R. Matheson
2nd United States Artillery, Battery M Captain Henry J. Hunt
1st New York Cavalry Regiment Colonel A. McReynolds
Graham’s Brigade Brigadier General L. P. Graham created late August
23rd Pennsylvania Infantry Regiment Colonel David Birney from Philadelphia early Sept.
to Graham’s Brig, Buell’s Div.
65th New York Infantry Regiment Colonel John Cochrane from New York 8/27
to Graham’s Brig, Buell’s Div.
67th New York Infantry Regiment Colonel Julius Adams from New York 8/21
to Graham’s Brig, Buell’s Div.
Heintzelman’s Brigade Brigadier General Samuel P. Heintzelman
5th Maine Infantry Regiment Colonel Mark H. Dunnell (res. 9/2)
Colonel Nathaniel J. Jackson
to Slocum’s Brig., Franklin’s Div.
16th New York Infantry Regiment Colonel Thomas A. Davies
26th New York Infantry Regiment Colonel William H. Christian
27th New York Infantry Regiment Major Joseph J. Bartlett
2nd United States Artillery, Battery A Captain Tidball to Blenker’s Brigade, Hooker’s Division
Hooker’s Brigade Brigadier General Joseph Hooker
2nd New Hampshire Infantry Regiment Colonel Gilman Marston to 1st Brig., Hooker’s Div.
1st Massachusetts Infantry Regiment Colonel Robert Cowdin to 1st Brig., Hooker’s Div.
11th Massachusetts Infantry Regiment Colonel George Clark to 1st Brig., Hooker’s Div.
1st Michigan Infantry Regiment Colonel John C. Robertson from Michigan 9/16; to 1st Brig., Hooker’s Div.
26th Pennsylvania Infantry Regiment Colonel William F. Small to 1st Brig., Hooker’s Div.
Howard’s Brigade Brigadier General Oliver O. Howard created 9/7
3rd Maine Infantry Regiment Colonel Oliver O. Howard (to 9/7)
Colonel Henry G. Staples
to Sedgwick’s Brig., Heintzelman’s Div.
4th Maine Infantry Regiment Colonel Hiram G. Berry
38th New York Infantry Regiment Colonel J. H. H. Ward
40th New York Infantry Regiment Colonel Edward J. Riley
Hunter’s Brigade Brigadier General David Hunter
23rd New York Infantry Regiment Colonel Henry C. Hoffman to Wadsworth’s Brig., McDowell’s Div.
25th New York Infantry Regiment Colonel James E. Kerrigan to Butterfield’s Brig., Porter’s Div.
35th New York Infantry Regiment Colonel Newton B. Lord to Wadsworth’s Brig., McDowell’s Div.
37th New York Infantry Regiment Lt. Colonel Samuel B. Hayman to Richardson’s Brig., Heintzelman’s Div.
Kearney’s Brigade Brigadier General Phillip Kearney
1st New Jersey Infantry Regiment Colonel Alfred T.A. Torbert to Kearney’s Brig. Franklin’s Div.
2nd New Jersey Infantry Regiment Colonel George W. McLean
3rd New Jersey Infantry Regiment Colonel George W. Taylor
4th New Jersey Infantry Regiment Colonel James H. Simpson
1st New Jersey Artillery, Battery A Captain William Hexamer to Artillery, Franklin’s Div.
2nd United States Artillery, Battery D to Artillery, Franklin’s Div.
2nd United States Artillery, Battery G Captain Greene to Artillery, Heintzelman’s Div.
2nd United States Cavalry, Company G to Provost Guard, Army Potomac
Keyes’ Brigade Brigadier General Erasmus Keyes
14th New York State Militia Lt. Colonel E.B. Fowler to Keyes’ Brig., McDowell’s Div.
22nd New York Infantry Regiment Colonel Walter Phelps
24th New York Infantry Regiment Colonel Timothy Sullivan
30th New York Infantry Regiment Colonel Edmund Frisby
Lander’s Brigade Brigadier General F. W. Lander
19th Massachusetts Infantry Regiment Colonel Edward W. Hincks from Mass.; to Lander’s Brig., Stone’s Div.
20th Massachusetts Infantry Regiment Colonel William R. Lee
7th Michigan Infantry Regiment Colonel Erastus B. Tyler from Mich. 9/5; to Lander’s Brig., Stone’s Div.
Richardson’s Brigade Brigadier General Israel Richardson
12th New York Infantry Regiment Colonel Ezra L. Walrath (res. 9/25
Lieutenant Colonel Henry A. Weeks
to Wadsworth’s Brig., McDowell’s Div.
2nd Michigan Infantry Regiment Colonel Orlando M. Poe (from 9/16)
3rd Michigan Infantry Regiment Colonel Daniel McConnel
1st United States Artillery, Battery G Lieutenant J. Edwards
Sherman’s Brigade Brigadier General William T. Sherman
9th Massachusetts Infantry Regiment Colonel Thomas Cass to Martindale’s Brig., Porter’s Div.
4th Michigan Infantry Regiment Colonel Dwight A. Woodbury to Morell’s Brig., Porter’s Div.
14th New York Infantry Regiment Colonel James McQuade to Morell’s Brig., Porter’s Div.
41st New York Infantry Regiment Colonel Leopold Von Gilsa to Martindale’s Brig., Porter’s Div.
3rd United States Artillery, Battery E Captain Hamilton to Artillery, Porter’s Div.
2nd United States Cavalry, Company I to Provost Guard, Army Potomac
Sickles’ Brigade Brigadier General Daniel E. Sickles
70th New York Infantry Regiment Colonel William Dwight to Sickles’ Bde., Hooker’s Div.
71st New York Infantry Regiment Colonel George B. Hall
72nd New York Infantry Regiment Colonel Nelson Taylor
74th New York Infantry Regiment Colonel Charles K. Graham
Smith’s Brigade Brigadier General William F. Smith
2nd Vermont Infantry Regiment Colonel Henry Whiting to Steven’s Brig., Smith’s Div.
3rd Vermont Infantry Regiment Colonel Breed N. Hyde
6th Maine Infantry Regiment Colonel Abner Knowles
33rd New York Infantry Regiment Colonel Robert F. Taylor
79th New York Infantry Regiment Colonel Isaac Stevens (to 9/28)
Lieutenant Colonel S.M. Elliott
New York Artillery, Battery B Captain Thaddeus P. Mott  to Smith’s Div.
2nd United States Cavalry, Company H to Hancock’s Brig., Smith’s Div.
5th United States Artillery, Battery F organized at Washington; to Smith’s Div.
Stone’s Brigade Brigadier General Charles P. Stone
34th New York Infantry Regiment Colonel W. La Due to Gorman’s Brig., Stone’s Div.
42st New York Infantry Regiment Colonel Milton Cogswell
2nd New York State Militia Colonel G.W.B. Tompkins
15th Massachusetts Infantry Regiment Colonel Charles P. Devens
1st Minnesota Infantry Regiment Colonel W. A. Gorman
1st United States Artillery, Battery I to Stone’s Div.
1st Rhode Island Artillery, Battery B
Fort Corcoran
2nd Maine Infantry Regiment Colonel Charles D. Jameson to Martindale’s Brig., Porter’s Div.
13th New York Infantry Regiment Colonel John Pickell to Martindale’s Brig., Porter’s Div.
2nd Wisconsin Infantry Regiment Colonel P. S. Coon to King’s Brig., McDowell’s Div.
Fort Runyan
21st New York Infantry Regiment Colonel William F. Rogers to Wadsworth’s Brig., McDowell’s Div.
Fort Ellsworth
17th New York Infantry Regiment Colonel H. Seymour Lansing to Butterfield’s Brig., Porter’s Div.