United States Army


< to September October 1861 • to November >

Commanded by Major General George B. McClellan

Headquarters

Provost Guard Colonel Andrew Porter
Sturgis (Illinois) Rifles from Headquarters, Div. Potomac
2nd United States Infantry Regiment from Defences of Washington
3rd United States Infantry, Cos.BDGH&K from Defences of Washington
4th United States Infantry Regiment from Defences of Washington
6th United States Infantry Regiment from Defences of Washington
8th United States Infantry, Cos. F&G from Defences of Washington
4th United States Cavalry, Cos. A&E from Defences of Washington
5th United States Artillery, Battery K new
Engineer Brigade
15th New York Engineer Regiment from 15th New York Infantry Regiment
50th New York Engineer Regiment from Porter’s Div., 3rd Bde.
Regular Engineer Battalion

Banks’ Division

Major General Nathaniel P. Banks
First Brigade Colonel George H. Gordon (to 10/18)
Brigadier General Alpheus S. Williams
5th Connecticut Infantry Regiment Colonel Orris S. Ferry
1st Maryland Infantry Regiment Colonel John R. Kenly
2nd Massachusetts Infantry Regiment Lieutenant Colonel George Andrews
Colonel George H. Gordon (after 10/18)
19th New York Infantry Regiment Colonel James Ledlie
28th New York Infantry Regiment Colonel Dudley Donnelly
13th Pennsylvania Reserves Infantry Colonel Charles Biddle to 2 Brig., McCall’s Div. 10/1
28th Pennsylvania Infantry Regiment Colonel John Geary
Second Brigade Brigadier General John J. Abercrombie
12th Indiana Infantry Regiment
16th Indiana Infantry Regiment
12th Massachusetts Infantry Regiment Colonel Fletcher Webster
13th Massachusetts Infantry Regiment Colonel Samuel H. Leonard  from 3rd Brig. (below)
66th Pennsylvania Infantry Regiment Colonel Alfred W. Chantry from Philadelphia 9/20
Third Brigade Colonel John W. Stiles (to 10/8)
Brigadier General C. S. Hamilton
27th Indiana Infantry Regiment Colonel Silas Colgrove  from Indianapolis 9/15
13th Massachusetts Infantry Regiment Colonel Mason Tappan  to 2nd Brig. (above)
9th New York State Militia Regiment Colonel John W. Stiles
29th Pennsylvania Infantry Regiment Colonel John K. Murphy
3rd Wisconsin Infantry Regiment Colonel Samuel H. Leonard
Artillery and Cavalry
Pennsylvania Independent Battery F from Defences Washington
1st Rhode Island Battery
Battery F, 4th United States Artillery from Defences Washington
3rd New York Cavalry (4 cos.) from New York

Buell’s Division

Brigadier General Don Carlos Buell created on October 3, 1861
First Brigade Brigadier General Darius N. Couch from Couch’s Brig., Div. Potomac
2nd Rhode Island Infantry Regiment Colonel Frank Wheaton
7th Massachusetts Infantry Regiment Colonel Nelson H. Davis
10th Massachusetts Infantry Regiment Colonel Henry S. Briggs
36th New York Infantry Regiment Colonel Charles H. Innes
Second Brigade Brigadier General L. P. Graham from Graham’s Brig., Div. Potomac>
65th New York Infantry Regiment Colonel John Cochrane
67th New York Infantry Regiment Colonel Julius W. Adams
23rd Pennsylvania Infantry Regiment Colonel David B. Birney
82nd Pennsylvania Infantry Regiment Colonel David H. Williams
Third Brigade Brigadier General J. J. Peck
55th New York Infantry Regiment Colonel Philip R. DeTrobriand from New York 8/31
62nd New York Infantry Regiment Colonel John L. Riker from New York 8/21
98th Pennsylvania Infantry Regiment Colonel John F. Balier from Philadelphia 9/30
102nd Pennsylvania Infantry Regiment Colonel Thomas A. Rowley from Pittsburg 8/21
Division Artillery
Battery D, 1st Pennsylvania Artillery
Battery H, 1st Pennsylvania Artillery

Casey’s Provisional Division

Brigadier General Silas Casey
5th New Jersey Infantry Regiment Colonel Samuel H. Starr
6th New Jersey Infantry Regiment Colonel James T. Hatfield
7th New Jersey Infantry Regiment Colonel Joseph W. Revere
8th New Jersey Infantry Regiment Colonel Adolphus J. Johnson
4th New Hampshire Infantry Regt. Colonel Thomas J. Whipple to Sherman’s S.C. Expedition
45th New York Infantry Regiment Colonel George Von Amsberg from New York City 10/9
54th New York Infantry Regiment Colonel Eugene Kozlay from New York City, 10/29
68th New York Infantry Regiment Colonel Robert J. Betge
73rd Pennsylvania Infantry Regiment Colonel John A. Koltes
75th Pennsylvania Infantry Regiment Colonel Henry Bohlen
100th Pennsylvania Infantry Regiment Colonel Daniel Leasure  to Sherman’s S.C. Expedition

Dix’s Division

Major General John Dix
Infantry
2nd Delaware Infantry Regiment Colonel W. Henry Wharton from Wilmington 10/7
21st Indiana Infantry Regiment Colonel James W. McMillan
1st Maryland Eastern Shore Regiment Colonel James Wallace
2nd Maryland Eastern Shore Regiment Colonel Edward Wilkins Organized at Charlestown, Md.
2nd Maryland Infantry Regiment Colonel John Sommer
3rd Maryland Infantry Regiment Colonel John C. McConnell
5th Maryland Infantry Regiment Colonel William L. Schley
Patapsco Maryland Guard Colonel James W. McMillan
17th Massachusetts Infantry Regiment Colonel Thomas I.C. Amory
7th Maine Infantry Regiment Col. Thomas Marshall (died 10/25)
Lt. Colonel Edward C. Mason
 to Smith’s Div., Davidson’s Bde.
10th Maine Infantry Regiment Colonel George L. Beale  from Portland 10/6
6th Michigan Infantry Regiment Colonel Frederick W. Curtenius
3rd New York Infantry Regiment Colonel Samuel M. Alford
4th New York Infantry Regiment Colonel Alfred W. Taylor
5th New York Infantry Regiment Colonel Abram Duryea (to BG. 9/10)
Colonel Gouverneur K. Warren
87th Pennsylvania Infantry Regiment Colonel George Hay
Division Artillery and Cavalry
Battery A, Maryland Light Artillery Organized at Baltimore, Md.
Battery B, Maryland Light Artillery Organized at Baltimore, Md.
2nd United States Artillery, Battery I at Fort McHenry
1st Maryland Cavalry Regiment Colonel Andrew G. Miller

Franklin’s Division

Brigadier General William B. Franklin
1st New Jersey Infantry Regiment Colonel Alfred T. A. Torbert

from Kearney’s Brig., Div. Potomac

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
Second Brigade Brigadier General Henry W. Slocum
5th Maine Infantry Regiment Colonel Nathaniel J. Jackson from Heintzleman’s Brig., Div. Potomac
16th New York Infantry Regiment Colonel Thomas A. Davies
26th New York Infantry Regiment Colonel William H. Christian
27th New York Infantry Regiment Colonel Joseph J. Bartlett
Third Brigade Brigadier General John Newton
15th New York Infantry Regiment Colonel J. McLeod Murphy from Franklin’s Brig., Div. Potomac
t
o Engineer Brig. as 15th NY Eng.
18th New York Infantry Regiment Colonel William A. Jackson from Franklin’s Bde., Div. Potomac
31st New York Infantry Regiment Colonel Calvin E. Pratt from Franklin’s Brig., Div. Potomac
32nd New York Infantry Regiment Colonel Roderick Matheson from Franklin’s Brig., Div. Potomac
95th Pennsylvania Infantry Regiment Colonel John M. Gosline from Philadelphia 10/12
Division Cavalry and Artillery
1st Massachusetts Battery from Massachusetts 10/3
Battery A, 1st New Jersey Artillery Captain William Hexamer from Kearney’s Brig., Div. Potomac
Battery F, 1st New York Artillery from Elmira, New York, 10/31
Battery D, 2nd United States Artillery from Kearney’s Brig., Div. Potomac
Battery M, 2nd United States Artillery from Kearney’s Brig., Div. Potomac
1st New York Cavalry Regiment Colonel Andrew T. McReynolds from Franklin’s Brig., Div. Potomac

Heintzelman’s Division 

Brigadier General Samuel P. Heintzelman
First Brigade Brigadier General Israel B. Richardson
2nd Michigan Infantry Regiment Colonel Orlando M. Poe
3rd Michigan Infantry Regiment Colonel Stephen Champlin
5th Michigan Infantry Regiment Colonel Henry D. Terry
37th New York Infantry Regiment Colonel Samuel B. Hayman
Second Brigade Brigadier General John Sedgwck
3rd Maine Infantry Regiment Colonel Henry G. Staples
4th Maine Infantry Regiment Colonel Hiram G. Berry
38th New York Infantry Regiment Colonel John H.H. Ward
40th New York Infantry Regiment Colonel Edward J. Riley
Third Brigade Brigadier General C. D. Jameson
45th Pennsylvania Infantry Regiment Colonel Thomas Welsh to Sherman’s SC expedition
61st Pennsylvania Infantry Regiment Colonel Oliver H. Rippey
63rd Pennsylvania Infantry Regiment Colonel Alexander Hays
99th Pennsylvania Infantry Regiment Colonel Romaine Lujeane (res. 11/7)
Colonel Thomas Sweeney
105th Pennsylvania Infantry Regiment Colonel Amor A. McKnight
Division Artillery and Cavalry
1st Rhode Island Artilery, Battery E
1st New Jersey Artillery, Battery B
2nd United States Artillery, Battery G
1st New Jersey Cavalry Regiment Colonel William Halstead

Hooker’s Division

Brigadier General Joseph Hooker
First Brigade Brigadier General H. M. Naglee
2nd New Hampshire Infantry Regiment from Hooker’s Brig., Div. Potomac
1st Massachusetts Infantry Regiment Colonel Napoleon B. McLaughlen
11th Massachusetts Infantry Regiment Colonel George Clark (res. 10/11)
Colonel William Blaisdell
1st Michigan Infantry Regiment Colonel John C. Robertson
26th Pennsylvania Infantry Regiment Colonel William F. Small
Second Brigade Brigadier General Daniel E. Sickles
70th New York Infantry Regiment Colonel William Dwight from Sickles’ Brig., Div. Potomac
71st New York Infantry Regiment Colonel George B. Hall from Sickles’ Brig., Div. Potomac
72nd New York Infantry Regiment Colonel Nelson Taylor from Sickles’ Brig., Div. Potomac
73rd New York Infantry Regiment Colonel William R. Brewster from New York 10/10
74th New York Infantry Regiment Colonel Charles K. Graham from Sickles’ Brig., Div. Potomac
Third Brigade Brigadier General Louis Blenker
8th New York Infantry Regiment Colonel Julius Stahel from Div. Potomac,
Blenker’s Brig.
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
4th New York Cavalry Regiment  Colonel Christian F. Dickel
Division Artillery and Cavalry
Battery E, 1st United States Artillery from Dist. Washington
3rd Indiana Cavalry Regiment Colonel Scott Carter from Dist. Washington 10/22

McCall’s Division

“Pennsylvania Reserves”

Brigadier General George McCall
First Brigade Brigadier General John Reynolds
1st Pennsylvania Reserves Colonel Richard B. Roberts
2nd Pennsylvania Reserves Colonel William B. Mann (res. 10/30)
5th Pennsylvania Reserves Colonel Seneca G. Simmons
8th Pennsylvania Reserves Colonel George S. Hays
Second Brigade Brigadier General George Meade
3rd Pennsylvania Reserves Colonel Horatio G. Sickel
4th Pennsylvania Reserves Col. Robert G. March (res. 10/1)
Colonel Albert L. Magilton
7th Pennsylvania Reserves Colonel Elisha B. Harvey
11th Pennsylvania Reserves Colonel Thomas F. Gallagher
13th Pennsylvania Reserves Colonel Charles J. Biddle from Thomas’ Brigade, Banks’ Div. 10/1
Third Brigade Brigadier General Edward O. C. Ord
6th Pennsylvania Reserves Colonel William W. Ricketts
9th Pennsylvania Reserves Colonel Conrad F. Jackson
10th Pennsylvania Reserves Colonel John S. McCalmont
12th Pennsylvania Reserves Colonel John H. Taggart
Division Artillery and Cavalry
Battery A, 1st Pennsylvania Artillery
Battery B, 1st Pennsylvania Artillery
Battery G, 1st Pennsylvania Artillery
Battery C, 5th United States Artillery
1st Pennsylvania Cavalry Colonel George D. Bayard

McDowell’s Division

Brigadier General Irwin McDowell
First Brigade Brigadier General Erasmus D. Keyes
22nd New York Infantry Regiment Colonel Walter Phelps
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 Brigadier General J. S. Wadsworth
12th New York Infantry Regiment Lieutenant Colonel Robert M. Richardson from Richardson’s Brig., Div. Potomac
21st New York Infantry Regiment Colonel William F. Rogers
23rd New York Infantry Regiment Colonel Henry C. Hoffman
35th New York Infantry Regiment Colonel Newton B. Lord
80th New York Infantry Regiment Colonel George W. Pratt from New York 10/26
Third Brigade Brigadier General Rufus King
2nd Wisconsin Infantry Regiment Colonel Edgar O’Connor
6th Wisconsin Infantry Regiment Colonel Lysander Cutler
7th Wisconsin Infantry Regiment Colonel Joseph Vandor from Wisconsin 10/1
19th Indiana Infantry Regiment Colonel Solomon Meredith
Division Artillery and Cavalry
1st Rhode Island Artillery, Battery D from Providence 9/14
Battery M, 2nd United States Artillery
2nd New York Cavalry Regiment Colonel J. Mansfield Davies

Porter’s Division

Brigadier General Fitz John Porter
First Brigade Brigadier General George W. Morrell
9th Massachusetts Infantry Regiment Colonel Thomas Cass
4th Michigan Infantry Regiment Colonel Dwight A. Woodbury
14th New York Infantry Regiment Colonel James McQuade
Second Brigade Brigadier General John H. Martindale
2nd Maine Infantry Regiment Colonel Charles W. Roberts
18th Massachusetts Infantry Regiment Colonel James Barnes
22nd Massachusetts Infantry Regiment Colonel Henry Wilson from Lynnfield, Ma. 10/11
13th New York Infantry Regiment Colonel John Pickell
41st New York Infantry Regiment Colonel Leopold Von Gilsa
Third Brigade Brigadier General D. Butterfield
16th Michigan Infantry Regiment Colonel Thomas Stockton
17th New York Infantry Regiment Colonel H. Seymour Lansing
25th New York Infantry Regiment Colonel James E. Kerrigan
41st New York Infantry Regiment Colonel Stephen W. Stryker from New York 10/26
83rd Pennsylvania Infantry Regiment Colonel John W. McLane from Erie 10/20
Division Artillery and Cavalry
Battery E, 2nd United States Artillery
3rd Pennsylvania Cavalry Regiment Colonel William Young (res. 10/31)
8th Pennsylvania Cavalry Regiment Colonel Ernest G. Cormann from Philadelphia 10/4

Smith’s Division

Brigadier General William F. Smith
First Brigade Brigadier General W. T. H. Brooks
2nd Vermont Infantry Regiment Colonel Henry Whiting from Div. Potomac, Smith’s Brig.
3rd Vermont Infantry Regiment Colonel Breed N. Hyde from Div. Potomac, Smith’s Brig.
4th Vermont Infantry Regiment Colonel Edwin H. Stoughton from Brattleboro 9/23
5th Vermont Infantry Regiment Colonel Henry A. Smalley from St. Albans 9/25
6th Vermont Infantry Regiment Colonel Nathan Lord from Montpelier 10/22
Second Brigade Brigadier General Issac I. Stevens (until 10/24)
Brig. Gen. J. W. Davidson
6th Maine Infantry Regiment Colonel Abner Knowles from Div. Potomac, Smith’s Brig.
7th Maine Infantry Regiment Colonel Thomas H. Marshall (died 10/25)
Lieutenant Colonel Edwin C. Mason
from Dix’s Div., Baltimore
33rd New York Infantry Regiment Colonel Robert F. Taylor from Div. Potomac, Smith’s Brig.
49th New York Infantry Regiment Colonel Daniel D. Bidwell from Buffalo 9/20
79th New York Infantry Regiment from Div. Potomac, Smith’s Brig.
Third Brigade Brigadier General Winfield S. Hancock
43rd New York Infantry Regiment Colonel Benjamin F. Baker from Albany 9/21
47th Pennsylvania Infantry Regiment Colonel Tighman H. Good from Harrisburg 9/20
49th Pennsylvania Infantry Regiment Colonel William H. Irwin from Harrisburg 9/22
5th Wisconsin Infantry Regiment Colonel Amasa Cobb from King’s Bde.
1st U.S. Sharpshooters, Cos. B & E from Weehauken, N.J. in September
Division Artillery and Cavalry
New York Artillery, Battery B Captain Thaddeus P. Mott from Div. Potomac, Smith’s Brig.
Battery E, 1st Pennsylvania Artillery from Philadelphia 8/5
Battery F, 5th United States Artillery Captain Romeyn B. Ayres from Div. Potomac, Smith’s Brig.
5th Pennsylvania Cavalry Regiment Colonel Max Friedman from Philidelphia

Stone’s Division

Brigadier General Charles P. Stone
First Brigade Brigadier General W. Gorman
34th New York Infantry Regiment Colonel William La Deu from Stone’s Brig. Div. Potomac
42nd New York Infantry Regiment Colonel Milton Cogswell (w&c 10/21)
2nd New York State Militia Colonel G.W.B. Tompkins
1st Minnesota Infantry Regiment
15th Massachusetts Infantry Regiment Colonel Charles Devens
Second Brigade Brigadier General Frederick Lander (10/3 – 10/22)
Colonel Napoleon J. T. Dana
19th Massachusetts Infantry Regiment Colonel Edward Hinks  from Lander’s Brig. Div. Potomac
20th Massachusetts Infantry Regiment Colonel William R. Lee (c 10/21)
7th Michigan Infantry Regiment Colonel Ira Grosvenor
Third Brigade Colonel Edward D. Baker (k 10/21)
Brigadier General William W. Burns
69th Pennsylvania Infantry Regiment Colonel Joshua Owen
71st Pennsylvania Infantry Regiment Colonel Isaac J. Wistar from Defences Washington
72nd Pennsylvania Infantry Regiment Colonel DeWitt C. Baxter from Defences Washington
106th Pennsylvania Infantry Regiment Colonel Turner G. Morehead from Philadelphia
Division Artillery and Cavalry
Battery B, 1st Rhode Island Artillery from Stone’s Brig. Div. Potomac
6th New York Independent Battery from Defences Washington, July
13th New York Independent Battery from New York 10/18
Battery I, 1st United States Artillery from Stone’s Brig. Div. Potomac
3rd New York Cavalry (3 cos.) from New York

Artillery Reserve

Colonel Henry K. Hunt
1st New York Artillery Bn., Battery A Captain Thomas H. Bates from New York 10/12
1st New York Artillery Bn., Battery B Captain Rufus T. Pettit from New York 10/12
1st New York Artillery Bn., Battery C from New York 10/12
1st New York Artillery Bn., Battery D Captain Thomas W. Osborn from New York 10/12
1st United States Artillery, Battery H from Reserve Artilery
1st United States Artillery, Batteries G&K from Richardson’s Brig.
2nd United States Artillery, Battery A from Blenker’s Brig.
2nd United States Artillery, Battery B from Dept. of Virginia
2nd United States Artillery, Battery L from Dept. of Virginia
3rd United States Artillery, Batteries F&K
4th United States Artillery, Battery K
5th United States Artillery, Battery A

Cavalry Command

Brigadier General George Stoneman
McClellan Dragoons (Illinois) from Chicago
Oneida New York Cavalry Captain Daniel P. Mann new from New York
4th Pennsylvania Cavalry Regiment Colonel David Campbell from Pennsylvania
11th Pennsylvania Cavalry Regiment Colonel Josiah Harlan from Philadelphia 10/14
5th United States Cavalry Regiment from Defenses Washington

Cavalry Reserve

2nd United States Cavalry Regiment

Defenses of Washington

Garrison Alexandria
88th Pennsylvania Infantry Regiment from camp at Kendall Green 10/12
Fort Albany
14th Massachusetts Infantry Regiment from Defences Washington
Fort Washington
37th New York Infantry, Cos. H&I from Div. Potomac, Hunter’s Brig.
1st United States Artillery, Battery D from Regular Army