# Second Battle of Bull Run order of battle: Union

The following Union Army units and commanders fought in the Second Battle of Bull Run, also known as the Second Battle of Manassas, of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organization during the battle, the casualty returns and the reports.

## Abbreviations used
### Military rank

* MG = Major General
* BG = Brigadier General
* Col = Colonel
* Ltc = Lieutenant Colonel
* Maj = Major
* Cpt = Captain
* Lt = Lieutenant

### Other

* w = wounded
* mw = mortally wounded
* k = killed
* c = captured

## Union forces
### Army of Virginia

MG John Pope
Chief of Staff: Col George D. Ruggles Chief of Artillery: Cpt Alexander Piper Chief of Cavalry: BG Washington L. Elliott (w)
Headquarters Escort:
* 1st Ohio Cavalry, Companies A and C

#### I Corps

MG Franz Sigel (w)
Chief of Artillery: Cpt Ulric Dahlgren
Headquarters Escort:
* 1st Indiana Cavalry, Companies I and 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 Adolphus Buschbeck, Ltc Lorenz Cantador New York Light Artillery, 2nd Battery: Lt F. J. T. Blume |
| First Division   BG Robert C. Schenck (w)   BG Julius Stahel | 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 1st Ohio Light Artillery, Battery K: Lt George B. Haskin |
| Second 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 (mw) 73rd Pennsylvania: Ltc Gustavus A. Muhleck, Cpt Augustus Brueckner (k), Cpt Charles C. Cresson (w), Cpt Lewis Talter (w) |
| Third 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 Pennsylvania Light Artillery, Battery F: Cpt Robert B. Hampton |
| Third Division   BG Carl Schurz | 2nd Brigade   Col Wlodzimierz Krzyzanowski | 54th New York: Ltc Charles Ashby 58th New York: Maj William Henkel (w), Cpt Frederick Braun 75th Pennsylvania: Ltc Francis Mahler 2nd New York Artillery, Battery L: Cpt Jacob Roemer |
| Third Division   BG Carl Schurz | Unattached | 3rd West Virginia Cavalry, Company C: Cpt Jonathan Stahl 1st Ohio Light Artillery, Battery I: Cpt Hubert Dilger |
| Reporting directly | Independent Brigade   BG Robert H. Milroy | 82nd Ohio: Col James Cantwell (k), Ltc James S. Robinson 2nd West Virginia: Col George R. Latham 3rd West Virginia: Col David T. Hewes 5th West Virginia: Col John L. Zeigler 1st West Virginia Cavalry, Companies C, E, and L: Maj John S. Krepps Ohio Light Artillery, 12th Battery: Cpt Aaron C. Johnson |
| Reporting directly | Cavalry Brigade   Col John Beardsley | 1st Connecticut Battalion 1st Maryland: Ltc Charles Wetschky 4th New York: Ltc Ferris Nazer 9th New York: Maj Charles McL. Knox 6th Ohio: Col William R. Lloyd |
| Reporting directly | Reserve Artillery   Cpt Louis Schirmer | 1st New York Light, Battery I: Cpt Michael Wiedrich New York Light, 13th Battery: Cpt Julius Dieckmann West Virginia Light, Battery C: Lt Wallace Hill |

#### II Corps

| Brigade | Regiments and Others |
| Cavalry Brigade   BG John Buford (w) | 1st Michigan: Col Thornton F. Brodhead (mw), Maj Charles H. Town 5th New York: Col Othniel DeForest 1st Vermont: Col Charles H. Tompkins 1st West Virginia: Ltc Nathaniel P. Richmond |
| Artillery | Maine Light, 6th Battery: Cpt Freeman McGilvery |

#### III Corps

MG Irvin McDowell
Chief of Staff: Col Edmund Schriver Chief of Artillery: Maj Davis Tillson
Headquarters Troops:
* Maine Light Artillery, 3rd Battery (Pontonniers): Cpt James G. Swett
* 13th Pennsylvania Reserves (1st Rifles), Companies C, G, H and I: Ltc Thomas L. Kane
| Division | Brigade | Regiments and Others |
| First Division   BG Rufus King   BG John P. Hatch (w)   BG Abner Doubleday | 1st Brigade   BG John P. Hatch   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 (k) 84th New York (14th Militia): Ltc Edward B. Fowler (w), Maj William H. DeBevoise 2nd United States Sharpshooters: Col Henry A. V. Post |
| First Division   BG Rufus King   BG John P. Hatch (w)   BG Abner Doubleday | 2nd Brigade   BG Abner Doubleday   Col William P. Wainwright | 76th New York: Col William P. Wainwright, Maj Charles E. Livingstone 95th New York: Ltc James B. Post 56th Pennsylvania: Col Sullivan A. Meredith (w), Ltc J. William Hofmann |
| First Division   BG Rufus King   BG John P. Hatch (w)   BG Abner Doubleday | 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 (20th Militia): Col George W. Pratt (mw), Ltc Theodore B. Gates |
| First Division   BG Rufus King   BG John P. Hatch (w)   BG Abner Doubleday | 4th Brigade   BG John Gibbon | 19th Indiana: Col Solomon Meredith 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 Charles A. Hamilton (w), Ltc Lucius Fairchild |
| First Division   BG Rufus King   BG John P. Hatch (w)   BG Abner Doubleday | Artillery | New Hampshire Light, 1st Battery: Cpt George A. Gerrish (c), Lt Frederick M. Edgell 1st New York Light, Battery L: Cpt John A. Reynolds 1st Rhode Island Light, Battery D: Cpt J. Albert Monroe 4th United States, Battery B: Cpt Joseph B. Campbell |
| Second 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 |
| Second Division   BG James B. Ricketts | 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 (w) 88th Pennsylvania: Ltc Joseph A. McLean (k), Maj George W. Gile 90th Pennsylvania: Col Peter Lyle |
| Second Division   BG James B. Ricketts | 3rd Brigade   Col John W. Stiles | 12th Massachusetts: Col Fletcher Webster (k), Ltc Timothy M. Bryan, Jr. 13th Massachusetts: Col Samuel H. Leonard 83rd New York (9th Militia): Ltc William Atterbury 11th Pennsylvania: Col Richard Coulter |
| Second Division   BG James B. Ricketts | 4th Brigade   Col Joseph Thoburn (w) | 7th Indiana: Lieutenant Col John F. Cheek 84th Pennsylvania: Col Samuel M. Bowman 110th Pennsylvania: Col William D. Lewis, Jr. 1st West Virginia: Ltc Henry B. Hubbard |
| Second Division   BG James B. Ricketts | Artillery | Maine Light, 2nd Battery: Cpt James A. Hall Maine Light, 5th Battery: Cpt George F. Leppien 1st Pennsylvania Light, Battery F: Cpt Ezra W. Matthews Pennsylvania Light, Battery C: Cpt James Thompson |
| Pennsylvania Reserves   BG John F. Reynolds | 1st Brigade   BG George G. Meade | 3rd Pennsylvania Reserves: Col Horatio G. Sickel 4th Pennsylvania Reserves: Col Albert L. Magilton 7th Pennsylvania Reserves: Ltc Robert M. Henderson (w) 8th Pennsylvania Reserves: Cpt William Lemon 13th Pennsylvania Reserves (1st Rifles), Companies A, B, D, E, F and K: Col Hugh W. McNeil |
| Pennsylvania Reserves   BG John F. Reynolds | 2nd Brigade   BG Truman Seymour | 1st Pennsylvania Reserves: Col Richard Biddle Roberts 2nd Pennsylvania Reserves: Col William McCandless (w) 5th Pennsylvania Reserves: Ltc George Dare 6th Pennsylvania Reserves: Col William Sinclair |
| Pennsylvania Reserves   BG John F. Reynolds | 3rd Brigade   BG Conrad F. Jackson   Col Martin Davis Hardin (w)   Col James T. Kirk (w)   Ltc Robert Anderson | 9th Pennsylvania Reserves: Ltc Robert Anderson, Maj James M. Snodgrass 10th Pennsylvania Reserves: Col James T. Kirk 11th Pennsylvania Reserves: Ltc Samuel M. Jackson 12th Pennsylvania Reserves: Col Martin D. Hardin, Cpt Richard Gustin |
| Pennsylvania Reserves   BG John F. Reynolds | Artillery   Cpt Dunbar R. Ransom | 1st Pennsylvania Light, Battery A: Lt John G. Simpson 1st Pennsylvania Light, Battery B: Cpt James H. Cooper 1st Pennsylvania Light, Battery G: Cpt Mark Kern 5th United States, Battery C: Cpt Dunbar R. Ransom |
| Reporting directly | Cavalry Brigade   BG George D. Bayard | 1st Maine: Col Samuel H. Allen 2nd New York: Col J. Mansfield Davies 1st New Jersey: Ltc Joseph Karge (w), Maj Ivins D. Jones 1st Pennsylvania: Col Owen Jones 1st Rhode Island: Col Alfred N. Duffié |
| Reporting directly | Unattached | 3rd Indiana Cavalry (detachment) Indiana Light Artillery, 16th Battery: Cpt Charles A. Naylor 4th United States, Battery E: Cpt Joseph C. Clark, Jr. |

#### Reserve Corps

BG Samuel D. Sturgis
| Brigade | Regiments and Others |
| Piatt's Brigade   BG Abram S. Piatt | 63rd Indiana (Companies A, B, C and D): Ltc John S. Williams 86th New York: Col Benajah P. Bailey |

### Army of the Potomac

The following Corps from the Army of the Potomac were attached to the Army of Virginia.

#### III Corps

MG Samuel P. Heintzelman
| Division | Brigade | Regiments and Others |
| First Division   MG Philip Kearny | 1st Brigade   BG John C. Robinson | 20th Indiana: Col William L. Brown (k), Maj John Wheeler 30th Ohio Infantry (6 cos.), Lt. Col. Theodore Jones 63rd Pennsylvania: Col Alexander Hays (w), Cpt James F. Ryan (w) 105th Pennsylvania: Ltc Calvin A. Craig (w), Maj Jacob W. Greenwalt |
| First Division   MG Philip Kearny | 2nd Brigade   BG David B. Birney | 3rd Maine: Cpt Moses B. Lakeman, Maj Edwin Burt 4th Maine: Col Elijah Walker 1st New York: Maj Edwin Burt, Cpt Joseph Yeamans 38th New York: Col J. H. Hobart Ward 40th New York: Col Thomas W. Egan 101st New York: Ltc Nelson A. Gesner 57th Pennsylvania: Maj William Birney |
| First Division   MG Philip Kearny | 3rd Brigade   Col Orlando Poe | 2nd Michigan: Ltc Louis Dillman 3rd Michigan: Col Stephen G. Champlin (w), Maj Byron R. Pierce 5th Michigan: Cpt William Wakenshaw 37th New York: Col Samuel B. Hayman 99th Pennsylvania: Col Asher S. Leidy |
| First Division   MG Philip Kearny | Artillery | 1st Rhode Island Light, Battery E: Cpt George E. Randolph 1st United States, Battery K: Cpt William M. Graham |
| Second Division   MG Joseph Hooker | 1st Brigade   BG Cuvier Grover | 1st Massachusetts: Col Robert Cowdin 11th Massachusetts: Col William E. Blaisdell 16th Massachusetts: Maj Gardner Banks 2nd New Hampshire: Col Gilman Marston 26th Pennsylvania: Maj Robert L. Bodine |
| Second Division   MG Joseph Hooker | 2nd 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. William Burns 74th New York: Maj Edward L. Price |
| Second Division   MG Joseph Hooker | 3rd Brigade   Col Joseph B. Carr | 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, Cpt Oliver S. Johnson, Cpt Daniel Blauvelt, Jr. 2nd New York: Cpt Sidney W. Park 115th Pennsylvania: Ltc Robert Thompson |

#### V Corps

MG Fitz John Porter
Chief of Staff: Ltc Frederick T. Locke
| Division | Brigade | Regiments and Others |
| First Division   BG Daniel Butterfield | 1st Brigade   Col Charles W. Roberts | 2nd Maine: Maj Daniel F. Sargent 18th Massachusetts: Maj Joseph Hayes 1st Michigan: Col Horace S. Roberts (k), Cpt Emery W. Belton 13th New York: Col Elisha G. Marshall 25th New York: Col Charles A. Johnson |
| First Division   BG Daniel Butterfield | 3rd Brigade   Col Henry S. Lansing   Col Henry A. Weeks (w)   Col James C. Rice | 16th Michigan: Cpt Thomas J. Barry (w), Cpt Henry H. Sibley 12th New York: Col Henry A. Weeks, Cpt Adrian I. Root (w), Cpt William Huson 17th New York: Col Henry S. Lansing, Maj William T. C. Grower (w), Cpt John Vickers 44th New York: Col James C. Rice, Maj Freeman Conner 83rd Pennsylvania: Ltc Hugh S. Campbell (w), Maj William R. Lamont (w), Cpt John Graham (w), Cpt Orpheus S. Woodward |
| First Division   BG Daniel Butterfield | Sharpshooters | 1st United States: Col Hiram Berdan |
| First Division   BG Daniel Butterfield | Artillery | 1st Rhode Island Light, Battery C: Cpt Richard Waterman 5th United States, Battery D: Lt Charles E. Hazlett |
| Second Division   BG George Sykes | 1st Brigade   Ltc Robert C. Buchanan | 3rd United States: Cpt John D. Wilkins 4th United States: Cpt Joseph B. Collins (w), Cpt Hiram Dryer 12th United States, 1st Battalion: Cpt Matthew M. Blunt 14th United States, 1st Battalion: Cpt John D. O'Connell (w), Cpt W. Harvey Brown 14th United States, 2nd Battalion: Cpt David B. McKibbin (w) |
| Second Division   BG George Sykes | 2nd Brigade   Ltc William Chapman | 1st and 6th United States: Cpt Levi C. Bootes 2nd and 10th United States: Maj Charles S. Lovell 11th United States: Maj Delancey Floyd-Jones 17th United States: Maj George L. Andrews |
| Second Division   BG George Sykes | 3rd Brigade   Col Gouverneur K. Warren | 5th New York: Cpt Cleveland Winslow 10th New York: Col John E. Bendix |
| Second Division   BG George Sykes | Artillery   Cpt Stephen H. Weed | 1st United States, Batteries E and G: Lt Alanson M. Randol 5th United States, Battery I: Cpt Stephen H. Weed 5th United States, Battery K: Cpt John R. Smead (k), Lt William E. Van Reed |

#### IX Corps

MG Jesse L. Reno
| Division | Brigade | Regiments and Others |
| First Division   BG Isaac I. Stevens | 1st Brigade   Col Benjamin C. Christ | 8th Michigan: Ltc Frank Graves 50th Pennsylvania: Ltc Thomas S. Brenholtz (w), Maj Edward Overton, Jr. |
| First Division   BG Isaac I. Stevens | 2nd Brigade   Col Daniel Leasure (w)   Ltc David A. Leckey | 46th New York (5 companies): Col Rudolph Rosa (w), Maj Julius Parcus 100th Pennsylvania: Ltc David A. Leckey (w), Cpt James E. Cornelius |
| First Division   BG Isaac I. Stevens | 3rd Brigade   Col Addison Farnsworth | 28th Massachusetts: Maj George W. Cartwright (w), Cpt Andrew P. Caraher 79th New York: Ltc David Morrison |
| First Division   BG Isaac I. Stevens | Artillery | Massachusetts Light, 8th Battery: Cpt Asa M. Cook 2nd U.S. Artillery, Battery E: Lt Samuel N. Benjamin |
| Second Division   MG Jesse L. Reno | 1st Brigade   Col James Nagle | 2nd Maryland: Ltc J. Eugene Duryèe 6th New Hampshire: Col Simon G. Griffin 48th Pennsylvania: Ltc Joshua K. Sigfried |
| Second Division   MG Jesse L. Reno | 2nd Brigade   Col Edward Ferrero | 21st Massachusetts: Col William S. Clark 51st New York: Ltc Robert Brown Potter 51st Pennsylvania: Col John F. Hartranft |
| Second Division   MG Jesse L. Reno | Artillery | Pennsylvania Light, Battery D: Cpt George W. Durell |