Second Battle of Bull Run order of battle: Union

The following Union Army units and commanders fought in the Second Battle of Bull Run of the American Civil War. The Confederate order of battle is listed separately.

Capt Jacob Roemer

Abbreviations Used

Military Rank

• Gen = General
• MG = Major General
• BG = Brigadier General
• Col = Colonel
• Ltc = Lieutenant Colonel
• Maj = Major
• Cpt = Captain
• Lt = Lieutenant
• Sgt = Sergeant

Others

• w = wounded
• mow = mortally wounded
• k = killed

Army of Virginia

MG John Pope

Headquarters Escort

1st Ohio Cavalry (Cos. A & C)

5th New York Cavalry (7 cos.)

36th Ohio: Colonel George Crook

I Corps

MG Franz Sigel

Headquarters Escort

1st Indiana Cavalry (Cos. I & K)

Division	Brigade	Regiments and Others
First Division      BG Robert C. Schenck (w)      BG Julius Stahel	1st Brigade    BG Julius Stahel    Col. Adolphus Buschbeck	8th New York: Ltc Carl B. Hedterich 41st New York: Ltc Ernest W. Holmstedt 45th New York: Ltc Edward W. Wratislaw 27th Pennsylvania: Col Buschbeck, Ltc Lorenz Cantador
	2nd Brigade    Col Nathaniel C. McLean	25th Ohio: Col William P. Richardson 55th Ohio: Col John C. Lee 73rd Ohio: Col Orland Smith 75th Ohio: Maj Robert Reily
	Artillery	Battery K, 1st Ohio Artillery: Lt George B. Haskin 2nd New York Light: Cpt Louis Shirmer (attached to 1st brigade)
2nd Division      BG Adolph von Steinwehr	1st Brigade    Col John A. Koltes (k)    Ltc Gustavus A. Muhleck	29th New York: Col Clemens Soest(w), Maj Louis Hartman 68th New York: Ltc John H. Kleefisch 73rd Pennsylvania: Ltc Muhleck
3rd Division      BG Carl Schurz	1st Brigade    Col Alexander Schimmelfennig	61st Ohio: Ltc Stephen J. McGroarty 74th Pennsylvania: Maj Franz Blessing 8th West Virginia: Cpt Hedgman Slack Battery F, Pennsylvania Artillery: Cpt Robert B. Hampton
	2nd Brigade    Col Włodzimierz Krzyżanowski	54th New York: Ltc Charles Ashby 58th New York: Maj William Henkel (w), Cpt Frederick Braun 75th Pennsylvania: Ltc Francis Mahler Battery L, 2nd New York Artillery: Cpt Jacob Roemer
	Unattached	Troop C, 3rd West Virginia Cavalry: Cpt Jonathan Stahl Battery I, 1st Ohio Artillery: Cpt Hubert Dilger
Independent Brigade    BG Robert H. Milroy	2nd West Virginia: Col George R. Latham 3rd West Virginia: Col David T. Hewes 5th West Virginia: Col John L. Zeigler 82nd Ohio: Col James Cantwell (k), Ltc James S. Robinson Troops C, E, and L, 1st West Virginia Cavalry: Maj John S. Krepps 12th Ohio Battery: Cpt Aaron C. Johnson
Cavalry Brigade    BG John Beardsley	1st Connecticut Battalion 1st Maryland: Ltc Charles Wetschky 4th New York: Ltc Ferris Nazer 9th New York: Maj Charles Knox 6th Ohio: Col William R. Lloyd
Reserve Artillery    Cpt Frank Buell    Cpt Louis Schirmer	Battery I, 1st New York Light: Cpt Michael Wiedrich 13th New York: Cpt Julius Dieckmann Battery C, West Virginia Artillery: Lt Wallace Hill

III Corps

MG Irvin McDowell

Division	Brigade	Regiments and Others
1st Division      BG Rufus King (Ill)      BG John P. Hatch (wounded)      BG Abner Doubleday	1st Brigade    BG John P. Hatch (w)    Col Timothy Sullivan	22nd New York: Col Walter Phelps, Jr. 24th New York: Col Timothy Sullivan, Ltc Samuel Beardsley (w), Maj Andrew Barney (w) 30th New York: Col Edward Frisby 84th New York: Ltc Edward B. Fowler (w), Maj W.H. de Bevois 2nd United States Sharpshooters: Col Henry A.V. Post
	2nd Brigade    BG Abner Doubleday    Col William P. Wainwright	56th Pennsylvania: Col Sullivan A. Meredith (w), Ltc J.W. Hoffmann 76th New York: Col William P. Wainwright, Maj Charles E. Livingstone 95th New York: Ltc James B. Post
	3rd Brigade    BG Marsena R. Patrick	21st New York: Col William F. Rogers 23rd New York: Ltc Nirom M. Crane 35th New York: Col Newton B. Lord 80th New York: Col G.W. Pratt (mw), Ltc Theodore B. Gates
	4th Brigade BG John Gibbon	2nd Wisconsin: Col Edgar O'Conner (k), Ltc Lucius Fairchild 6th Wisconsin: Col Lysander Cutler (w), Ltc Edward S. Bragg 7th Wisconsin: Col William W. Robinson (w), Ltc C.A. Hamilton (w) 19th Indiana: Col Solomon Meredith
	Artillery	1st New Hampshire: Cpt George A. Gerrish, Lt Frederick M. Edgell Battery D, 1st Rhode Island: Cpt J. Albert Monroe Battery L, 1st New York: Cpt John A. Reynolds Battery B, 4th United States: Cpt Joseph B. Campbell
2nd Division      BG James B. Ricketts	1st Brigade    BG Abram Duryée	97th New York: Ltc John P. Spofford 104th New York: Maj Lewis C. Skinner 105th New York: Col Howard Carroll 107th Pennsylvania: Col Thomas F. McCoy
	2nd Brigade    BG Zealous B. Tower (w)    Col William H. Christian	26th New York: Col William H. Christian, Ltc Richard H. Richardson 94th New York: Col Adrian R. Root 88th Pennsylvania: Ltc J.A. McLean (k), Maj George W. Gile 90th Pennsylvania: Col Peter Lyle
	3rd Brigade    Col John W. Stiles	12th Massachusetts: Col Fletcher Webster (k), Ltc T.M. Bryan, Jr. 13th Massachusetts: Col Samuel H. Leonard 83rd New York: Ltc William Atterbury 11th Pennsylvania: Col Richard Coulter
	4th Brigade    Col Joseph Thoburn	7th Indiana: Lieutenant Colonel John F. Cheek 84th Pennsylvania: Col Samuel M. Bowman 110th Pennsylvania: Col William D. Lewis, Jr. 1st West Virginia: Ltc Henry B. Hubbard
	Artillery	2nd Maine Light: Cpt James A. Hall 5th Maine Light: Cpt G.F. Leppien Battery F, 1st Pennsylvania: Cpt Ezra W. Matthews Battery C, Pennsylvania: Cpt James Thompson
Cavalry Brigade (temporarily attached)    BG George Dashiell Bayard	1st Maine: Col Samuel H. Allen 2nd New York: Col J. Mansfield Davies 1st New Jersey: Ltc Joseph Karge, Maj Ivins D. Jones 1st Pennsylvania: Col Owen Jones 1st Rhode Island: Col Alfred N. Duffié

Reserve Corps

BG Samuel D. Sturgis

Piatt's Brigade

BG A. Sanders Piatt

63rd Indiana (4 companies): Ltc John S. Williams

86th New York: Col Benajah P. Bailey

Detachments from the Army of the Potomac, attached to the Army of Virginia

III Corps

MG Samuel P. Heintzelman

Headquarters Escort

5th New Cavalry (3 cos.)

Division	Brigade	Regiments and Others
1st Division      MG Philip Kearny	1st Brigade    BG John C. Robinson	20th Indiana: Col William L. Brown (k), Maj John Wheeler 30th Ohio (6 cos.): Ltc Theodore Jones 63rd Pennsylvania: Col Alexander Hays (w), Cpt James F. Ryan (w) 105th Pennsylvania: Ltc C.A. Craig (w), Maj J.W. Greenwalt
	2nd Brigade    BG David B. Birney	3rd Maine: Cpt Moses B. Lakeman 4th Maine: Col Elijah Walker 1st New York: Maj Edwin Burt 38th New York: Col John Henry Hobart Ward 40th New York: Col Thomas W. Egan 101st New York: Ltc Nelson A. Gesner 57th Pennsylvania: Maj William Birney
	3rd Brigade    Col Orlando Poe	37th New York: Col Samuel B. Hayman 99th Pennsylvania: Col Asher S. Leidy 2nd Michigan: Ltc Louis Dillman 3rd Michigan: Col S.G. Champlin (w), Maj Byron R. Pierce 5th Michigan: Cpt William Wakenshaw
	Artillery	Battery E, 1st Rhode Island: Cpt George E. Randolph Battery K, 1st United States: Cpt William M. Graham
3rd Division      MG Joseph Hooker	1st Brigade    BG Cuvier Grover	2nd New Hampshire: Col Gilman Marston 1st Massachusetts: Col Robert Cowdin 11th Massachusetts: Col William Blaisdell 16th Massachusetts: Maj Gardner Banks 26th Pennsylvania: Maj Robert L. Bodine
	2nd Brigade ("Excelsior Brigade")    Col Nelson Taylor	70th New York: Cpt Charles L. Young 71st New York: Cpt Owen Murphy 72nd New York: Cpt Harman J. Bliss 73rd New York: Cpt M.W. Burns 74th New York: Maj Edward L. Price
	3rd Brigade    Col Joseph Bradford Carr	2nd New York: Cpt Sidney W. Park 5th New Jersey: Ltc William J. Sewell 6th New Jersey: Col Gershom Mott (w), Ltc George C. Burling 7th New Jersey: Col Joseph W. Revere 8th New Jersey: Ltc William Ward (w), Cpt John Tuite (k), Cpt George Hoffman (w), Cpt O.S. Johnson, Cpt Daniel Blauvelt, Jr. 115th Pennsylvania: Ltc Robert Thompson
	Artillery	6th Maine Battery: Cpt Freeman McGilvery

V Corps

MG Fitz John Porter

Division	Brigade	Regiments and Others
1st Division      MG George W. Morell	1st Brigade    Col Charles W. Roberts	2nd Maine: Maj Daniel F. Sargent 18th Massachusetts: Maj Joseph Hayes 22nd Massachusetts: Cpt Mason W. Burt 13th New York: Col Elisha G. Marshall 25th New York: Col Charles A. Johnson 1st Michigan: Col H.S. Roberts (k), Cpt E.W. Belton
	2nd Brigade    BG Charles Griffin	9th Massachusetts: Col Patrick R. Guiney 32nd Massachusetts: Col Francis J. Parker 14th New York: Col James McQuade 62nd Pennsylvania: Col Jacob B. Sweitzer 4th Michigan: Col Jonathan W. Childs
	3rd Brigade    BG Daniel Butterfield    Col H.A. Weeks (w)    Col James C. Rice	12th New York: Col H.A. Weeks (w), Cpt Adrian I. Root (w), Cpt William Huson 17th New York: Col Henry A. Lansing, Maj W.T.C. Grower (w), Cpt John Vickers 44th New York: Col James Rice, Maj Freeman Conner 83rd Pennsylvania: Ltc H.S. Campbell (w), Maj William R. Lamont (w), Cpt John Graham, Cpt O.S.N. Woodward 16th Michigan: Cpt Thomas J. Barry, Cpt Henry H. Sibley 1st U.S. Sharpshooters: Col Hiram Berdan
	Artillery	3rd Massachusetts: Cpt Augustus P. Martin Battery C, 1st Rhode Island: Cpt Richard Waterman Battery D, 5th United States: Lt Charles E. Hazlett
2nd Division      BG George W. Sykes	1st Brigade    Ltc Robert C. Buchanan	3rd United States: Cpt John D. Wilkins 4th United States: Cpt J.B. Collins 12th United States (1st Battalion): Cpt Matthew M. Blunt 14th United States (1st Battalion): Cpt J.D. O'Connell (w), Cpt W.H. Brown 14th United States (2nd Battalion): Cpt David B. McKibbin
	2nd Brigade    Ltc William Chapman	Company G, 1st United States: Cpt Matthew R. Marston 2nd United States: Maj Charles S. Lovell 6th United States: Cpt Levi C. Bootes 10th United States: Maj Charles S. Lovell 11th United States: Maj Delancey Floyd-Jones 17th United States: Maj George L. Andrews
	3rd Brigade    Col Gouverneur K. Warren	5th New York: Cpt Cleveland Winslow 10th New York: Col John E. Bendix
	Artillery    Cpt Stephen H. Weed	Batteries E and G, 1st United States: Lt Alanson M. Randol Battery I, 5th United States: Cpt Stephen H. Weed Battery K, 5th United States: Cpt John R. Smead (k), Lt W.E. Van Reed

IX Corps

MG Jesse L. Reno

Division	Brigade	Regiments and Others
1st Division      MG Isaac I. Stevens	1st Brigade    Col Benjamin C. Christ	50th Pennsylvania: Ltc T.S. Brenholtz, Maj Edward Overton, Jr. 8th Michigan: Ltc Frank Graves
	2nd Brigade    Col Daniel Leasure (w)    Ltc David A. Leckey	46th New York (5 cos.): Col Rudolph Rosa (w), Maj Julius Parcus 100th Pennsylvania: Ltc David A. Leckey, Cpt J.E. Cornelius
	3rd Brigade    Col Addison Farnsworth	28th Massachusetts: Maj G.W. Cartwright 79th New York: Ltc David Morrison
	Artillery	Battery E, 2nd United States: Lt Samuel N. Benjamin
2nd Division MG Jesse L. Reno	1st Brigade Col James Nagle	6th New Hampshire: Col Simon Goodell Griffin 48th Pennsylvania: Ltc Joshua K. Sigfried 2nd Maryland: Ltc J. Eugene Duryea
	2nd Brigade Col Edward Ferrero	21st Massachusetts: Col William S. Clark 51st New York: Ltc Robert B. Potter 51st Pennsylvania: Col John F. Hartranft
	Artillery	Battery D, Pennsylvania Light: Cpt George W. Durell
Kanawha Division    Col Eliakim P. Scammon	11th Ohio 12th Ohio 30th Ohio 36th Ohio

References

• Manassass National Battlefield Park website
• Hennessy, John J., Return to Bull Run: The Campaign and Battle of Second Manassass ISBN 0-671-79368-3