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
Main article: Army of VirginiaMG 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
Main article: XI Corps (Union Army)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
|
1st Brigade
|
|
2nd Brigade |
| |
Second Division
|
1st Brigade
|
|
Third Division
|
1st Brigade |
|
2nd Brigade |
| |
Unattached |
| |
Reporting directly |
Independent Brigade |
|
Cavalry Brigade
|
| |
Reserve Artillery
|
|
II Corps
Main article: XII Corps (Union Army)Brigade | Regiments and Others |
---|---|
Cavalry Brigade
|
|
Artillery |
III Corps
Main article: I Corps (Union Army)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
|
1st Brigade
|
|
2nd Brigade
|
| |
3rd Brigade |
| |
4th Brigade
|
| |
Artillery |
| |
Second Division
|
1st Brigade
|
|
2nd Brigade
|
| |
3rd Brigade
|
| |
4th Brigade
|
| |
Artillery |
| |
1st Brigade |
| |
2nd Brigade |
| |
3rd Brigade
|
| |
Artillery
|
| |
Reporting directly |
Cavalry Brigade |
|
Unattached |
|
Reserve Corps
Brigade | Regiments and Others |
---|---|
Piatt's Brigade |
|
Army of the Potomac
Main article: Army of the PotomacThe following Corps from the Army of the Potomac were attached to the Army of Virginia.
III Corps
Main article: III Corps (Union Army)Division | Brigade | Regiments and Others |
---|---|---|
First Division
|
1st Brigade |
|
2nd Brigade |
| |
3rd Brigade
|
| |
Artillery |
| |
Second Division
|
1st Brigade |
|
2nd Brigade
|
| |
3rd Brigade
|
|
V Corps
Main article: V Corps (Union Army)Chief of Staff: Ltc Frederick T. Locke
Division | Brigade | Regiments and Others |
---|---|---|
First Division
|
1st Brigade |
|
3rd Brigade
|
| |
Sharpshooters | ||
Artillery |
| |
Second Division
|
1st Brigade |
|
2nd Brigade
|
| |
3rd Brigade | ||
Artillery
|
|
IX Corps
Main article: IX Corps (Union Army)Division | Brigade | Regiments and Others |
---|---|---|
First Division
|
1st Brigade |
|
2nd Brigade
|
| |
3rd Brigade
|
| |
Artillery |
| |
Second Division
|
1st Brigade
|
|
2nd Brigade
|
||
Artillery |
|
Notes
- Multiple commander names indicate command succession of command during the battle or the campaign.
- 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
- Official Records, Series I, Volume XII, Part 2, pages 249-262
- Official Records, Series I, Volume XII, Part 2, pages 829-830, 872-874; Official Records, Series I, Volume LI, Part 1, pages 1326, 1404
- Also commanded the detachments from the Army of the Potomac (see: Pope's report)
- Temporarily attached to Third Division August 30, 1862
- Beardsley's brigade was unusable on August 29-30 due to the poor condition of its horses.
- Captain Frank Buell was killed on August 22, 1862 (see: Official Records, Series I, Volume XII, Part 2, page 820)
- ^ No 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).
- For Buford's wound see: John J. Hennessy, Return to Bull Run, The Campaign and Battle of Second Manassas, page 434
- Temporarily attached to the Third Corps, Army of the Potomac, August 28–30, 1862 (see: Itinerary of the 6th Maine Battery)
- Sick after August 28, 1862
- ^ Commanded the 2nd and 7th Wisconsin on August 30, 1862 (see: Gibbon's report)
- Temporarily attached to the Third Corps, Army of Virginia
- Turned 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)
- Temporarily attached to the Fifth Corps, Army of the Potomac August 27–31, 1862
- ^ Commanded 1st New York on August 29, 1862, returned to the 3rd Maine on August 30, 1862 (see: Lakeman's and Burt's report)
- Injured August 29, 1862 and turned the command over to Captain Johnson (see: Hoffman's report)
- Rejoined the regiment on August 30, 1862 and assumed command as the senior officer present (see: Hoffman's report)
- Commanded the First and Third Brigades in battle August 30, 1862. The division commander Major General Morell and the Second Brigade (9th Massachusetts, 32nd Massachusetts, 4th Michigan, 14th New York and 62nd Pennsylvania) under Brigadier General Griffin were at Centreville, Virginia. (see: John J. Hennessy, Return to Bull Run, The Campaign and Battle of Second Manassas, page 318; Lansing's report)
- 22nd Massachusetts detached at Centreville, Virginia (see: Roberts' report)
- Turned over command to Colonel Weeks on account of sickness on August 30, 1862 (see: Lansing's report)
- Brady's Company Michigan Sharpshooters attached
- 3rd Massachusetts Battery detached at Centreville, Virginia (see: Martin's report)
- Only Company G, 1st United States under Captain Matthew R. Marston was present and attached to the 6th United States (see: Bootes' report)
- The 2nd and 10th United States were consolidated under the command of Major Lovell (see: Chapman's and Lovell's report)
- Also in command of all the troops of the Ninth Corps with Pope's army.
References
- Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War, Volume 2 (Pdf), New York: The Century Co., 1887.
- Hennessy, John J., Return to Bull Run: The Campaign and Battle of Second Manassas. University of Oklahoma Press, Norman, 1993. ISBN 978-0-8061-3187-0
- Manassas National Battlefield Park - Battle of Second Manassas
- The Armies at the Second Battle of Bull Run
- U.S. War Department, The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies, U.S. Government Printing Office, 1880–1901.