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 organizationMultiple commander names indicate command succession of command during the battle or the campaign. during the battle,Battles and Leaders of the Civil War, Volume 2, pages 497-499; Official Records, Series I, Volume XII, Part 3, pages 581-588; Manassas National Battlefield Park - Battle of Second Manassas, Union Order of Battle the casualty returnsOfficial Records, Series I, Volume XII, Part 2, pages 249-262 and the reports.Official Records, Series I, Volume XII, Part 2, pages 829-830, 872-874; Official Records, Series I, Volume LI, Part 1, pages 1326, 1404

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 PopeAlso commanded the detachments from the Army of the Potomac (see: Pope's report)

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 OthersFirst 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 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. HaskinSecond Division

BG Adolph von Steinwehr 1st BrigadeTemporarily attached to Third Division August 30, 1862

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 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 Unattached 3rd West Virginia Cavalry, Company C: Cpt Jonathan Stahl 1st Ohio Light Artillery, Battery I: Cpt Hubert DilgerReporting 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/Ltc Francis W. ThompsonHewes was absent without leave at the time of the battle. His second-in-command was Lieutenant Colonel Francis W. Thompson. (See second page of General Orders No. 82 dated March 1, 1864.) 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 Cavalry Brigade

Col John BeardsleyBeardsley's brigade was unusable on August 29-30 due to the poor condition of its horses. 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 Reserve ArtilleryCaptain Frank Buell was killed on August 22, 1862 (see: Official Records, Series I, Volume XII, Part 2, page 820)

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 BrigadeNo troops from the Second Corps, Army of Virginia, excepting its cavalry and the 6th Maine Battery, were engaged in any of the principal battles. During the battle the Corps was located at Bristoe Station (see: John J. Hennessy, Return to Bull Run, The Campaign and Battle of Second Manassas, page 411).

BG John BufordFor Buford's wound see: John J. Hennessy, Return to Bull Run, The Campaign and Battle of Second Manassas, page 434 (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:Temporarily attached to the Third Corps, Army of the Potomac, August 28–30, 1862 (see: Itinerary of the 6th Maine 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 OthersFirst Division

BG Rufus KingSick after August 28, 1862

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 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 William Hofmann 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 4th Brigade

BG John Gibbon 19th Indiana: Col Solomon Meredith 2nd Wisconsin: Col Edgar O'Conner (k), Ltc Lucius FairchildCommanded the 2nd and 7th Wisconsin on August 30, 1862 (see: Gibbon's report) 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 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. CampbellSecond 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 (w) 88th Pennsylvania: Ltc Joseph 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 Timothy M. Bryan, Jr. 13th Massachusetts: Col Samuel H. Leonard 83rd New York (9th Militia): Ltc William Atterbury 11th Pennsylvania: Col Richard Coulter 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 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 ThompsonPennsylvania ReservesTemporarily attached to the Third Corps, Army of Virginia

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 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 3rd Brigade

BG Conrad F. JacksonTurned over command to Colonel Hardin on account of sickness on August 29, 1862 (see: John J. Hennessy, Return to Bull Run, The Campaign and Battle of Second Manassas, page 375; Reynolds' report)

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 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. RansomReporting 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 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 BrigadeTemporarily attached to the Fifth Corps, Army of the Potomac August 27–31, 1862

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 OthersFirst 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 2nd Brigade

BG David B. Birney 3rd Maine: Cpt Moses B. Lakeman, Maj Edwin BurtCommanded 1st New York on August 29, 1862, returned to the 3rd Maine on August 30, 1862 (see: Lakeman's and Burt's report) 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 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 Artillery 1st Rhode Island Light, Battery E: Cpt George E. Randolph 1st United States, Battery K: Cpt William M. GrahamSecond 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 2nd Brigade

Col Nelson Taylor 70th New York: Cpt Charles L. Young 71st New York: Cpt Owen Murphy