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Commanded by:
General Pierre Gustave Toutant Beauregard
General Joseph Edward Johnston
The Battle of Manassas (Bull Run) on July 21 was the first large battle of the Civil War. Joseph Johnston’s Army of the Shenandoah came from Winchester to join Beauregard in time to help defeat the Federals. Johnston was the senior officer but did not assume command immediately as Beauregard knew the battlefield and the plan. After the battle Johnston assumed command of the combined armies. They reorganized on July 25.
Army organization before July 25, including the Battle of Manassas (Bull Run)
See below for organization after July 25
| First Brigade | Brigadier General Milledge L. Bonham | |
| 8th Louisiana Infantry Regiment | Colonel Henry B. Kelly | six companies arrived 7/1; four more 7/2 to 8th Brig. 7/25 (below) |
| 11th North Carolina Volunteers | Colonel Wiliam W. Kirkland | from Richmond 7/18 |
| 1st South Carolina Infantry Regiment | Colonel Maxcy Gregg | mustered out 7/9 |
| 2nd South Carolina Infantry Regiment | Colonel Joseph B. Kershaw | |
| 3rd South Carolina Infantry Regiment | Colonel James H. Williams | |
| 7th South Carolina Infantry Regiment | Colonel Thomas G. Bacon | |
| 8th South Carolina Infantry Regiment | Colonel Ellerbe Boggan Crawford Cash | |
| Alexandria (Va.) Battery | Captain Delaware Kemper | |
| 1st Company Richmond Howitzers | Captain John C. Shields | to 4th Brig., 1st Corps 7/25 |
| 30th Virginia Cavalry, Companies C & G | Colonel R.C.W. Radford | |
| Second Brigade | Brigadier General Richard S. Ewell | |
| 5th Alabama Infantry Regiment | Colonel Robert E. Rodes | |
| 6th Alabama Infantry Regiment | Colonel John J. Seibels | |
| 6th Louisiana Infantry Regiment | Colonel Isaac G. Seymour | to 8th Brig 7/25 (below) |
| Washington Artillery, 1st Company | Captain Thomas L. Rosser | |
| 30th Virginia Cavalry Regiment, Co. F | Captain James Wilson | to 4th Brig. 7/25 (below) |
| Cavalry Battalion (Goochland Light Dragoons and Governor’s Mounted Guards) | Lieutenant Colonel Wiliam H. Jenifer | |
| Third Brigade | Brigadier General David R. Jones | |
| 17th Mississippi Infantry Regiment | Colonel Winfirld S. Featherston | to 7th Brig. 7/25 (below) |
| 18th Mississippi Infantry Regiment | Colonel Erasmus R. Burt | to 7th Brig. 7/25 (below) |
| 5th South Carolina Infantry Regiment | Colonel Micah Jenkins | |
| 30th Virginia Cavalry Regiment, Company H | Captain Joel W. Flood | to 1st Brig. 7/25 (below) |
| Washington Artillery, 2nd Company | Captain Merrit B. Miller | |
| Fourth Brigade | Colonel G. H. Terrett (to 7/2) Brigadier General James Longstreet |
|
| 5th North Carolina State Troops | Lieutenant Colonel J.P. Jones (to 7/2) Colonel Duncan McRae |
to 6th Brig. 7/25 (below) |
| 1st Virginia Infantry Regiment | Colonel Patrick T. Moore | |
| 11th Virginia Infantry Regiment | Colonel Samuel Garland | |
| 17th Virginia Infantry Regiment | Colonel Montgomery D. Corse | |
| Washington Artillery, 3rd Company | Lieutenant John J. Garnett | |
| 30th Virginia Cavalry Regiment, Co. E. | Captain Edgar Whitehead | |
| Fifth Brigade | Colonel Philip St. George Cocke | |
| 8th Virginia Infantry Regiment | Colonel Eppa Hunton | to ind. command Leesburg 7/25 |
| 18th Virginia Infantry Regiment | Colonel Robert E. Withers | |
| 19th Virginia Infantry Regiment | Lieutenant Colonel John B. Strange | |
| 28th Virginia Infantry Regiment | Colonel Robert T. Preston | |
| 49th Virginia Infantry Regiment (3 cos.) | Colonel William Smith | |
| Schaeffer’s Virginia Infantry Battalion | Captain F. B. Schaeffer | |
| Loudon (Va.) Battery | Captain Arthur L. Rogers | to 4th Brig. 7/25 (below) |
| Lynchburg (Va.) Artillery | Captain H. G. Latham | |
| 30th Virginia Cavalry Regiment, Co. B | Captain John S. Langhorne | to 4th Brig. 7/25 (below) |
| 30th Virginia Cavalry Regiment, Co. D | Captain G. W. H. Hale | to 1st Brig. 7/25 (below) |
| Sixth Brigade | Colonel Jubal A. Early | |
| 7th Louisiana Infantry Regiment | Colonel Harry T. Hays | to 8th Brig. 7/25 (below) |
| 13th Mississippi Infantry Regiment | Colonel William Barksdale | from Lynchburg before 7/21 to 7th Brig 7/25 (below) |
| 7th Virginia Infantry Regiment | Colonel James L. Kemper | to 4th Brig. 7/25 (below) |
| 24th Virginia Infantry Regiment | Lieutenant Colonel Peter Hairston | |
| Washington Artillery, 4th Company | Lieutenant Charles W. Squire | |
| Seventh Brigade | Colonel Nathan G. Evans | |
| 2nd Louisiana Battalion | Major Chatham R. Wheat (w 7/21) Lieutenant Thomas Adrian (w 7/21) Lieutenant Colonel Charles de Choiseul |
|
| 4th South Carolina Infantry Regiment | Colonel J.B.E. Sloan | to 3rd Brig. 7/25 (below) |
| 30th Virginia Cavalry Regiment, Co. I | Captain John D. Alexander | to 1st Brig. 7/25 (below) |
| 30th Virginia Cavalry Regiment, Co. A | Captain William R. Terry | to 1st Brig. 7/25 (below) |
| Davidson’s (Va.) Battery | Lieutenant G. S. Davidson | |
| Eighth Brigade | Brigadier General Theophilus Holmes | |
| 1st Arkansas Infantry Regiment | Colonel James F. Fagan | to Walker’s Brig. Dept. Fredericksburg |
| 2nd Tennessee Infantry Regiment | Colonel William Bate | to Walker’s Brig. Dept. Fredericksburg |
| Purcell (Va.) Artillery | Captain R. Lindsay Walker | to District Aquia, Dept. Fredericksburg |
| Hampton’s (S.C.) Legion | Colonel Wade Hampton (w 7/21) Captain James Conner |
arrived 7/21 |
Army organization after July 25 and after the Battle of Manassas (Bull Run)
See above for organization before July 25
| First Brigade | Brigadier General Milledge L. Bonham | |
| 11th North Carolina Volunteers | Colonel Wiliam W. Kirkland | to 6th (Early’s) Brig. |
| 2nd South Carolina Infantry Regiment | Colonel Joseph B. Kershaw | |
| 3rd South Carolina Infantry Regiment | Colonel James H. Williams | |
| 7th South Carolina Infantry Regiment | Colonel Thomas G. Bacon | |
| 8th South Carolina Infantry Regiment | Colonel Ellerbe Boggan Crawford Cash | |
| Boykin’s (SC) Mounted Rangers | Captain Alexander H. Boykin | arrived after 7/21 |
| Alexandria (Va.) Battery | Captain Delaware Kemper | |
| 30th Virginia Cavalry, Companies A,C,D,G,H & I | Colonel R.C.W. Radford | |
| Second Brigade | Brigadier General Richard S. Ewell | |
| 5th Alabama Infantry Regiment | Colonel Robert E. Rodes | |
| 6th Alabama Infantry Regiment | Colonel John J. Seibels | |
| 12th Alabama Infantry Regiment | Colonel Robert Tignall Jones | arrived after 7/21 |
| 12th Mississippi Infantry Regiment | arrived after 7/21 | |
| Washington Artillery, 1st Company | Captain Thomas L. Rosser | |
| Cavalry Battalion (Goochland Light Dragoons and Governor’s Mounted Guards) | Lieutenant Colonel Wiliam H. Jenifer | |
| Third Brigade | Brigadier General David R. Jones | |
| 4th South Carolina Infantry Regiment | Colonel J.B.E. Sloan | from 7th Brig. |
| 5th South Carolina Infantry Regiment | Colonel Micah Jenkins | |
| Washington Artillery, 2nd Company | Captain Merrit B. Miller | |
| Fourth Brigade | Colonel G. H. Terrett (to 7/2) Brigadier General James Longstreet |
|
| 1st Virginia Infantry Regiment | Colonel Patrick T. Moore | |
| 7th Virginia Infantry Regiment | Colonel James L. Kemper | from 6th Brig. |
| 11th Virginia Infantry Regiment | Colonel Samuel Garland | |
| 17th Virginia Infantry Regiment | Colonel Montgomery D. Corse | |
| Washington Artillery, 3rd Company | Lieutenant John J. Garnett | |
| 30th Virginia Cavalry Regiment, Cos. B, E, F & K | Captain Edgar Whitehead | |
| Loudon (Va.) Battery | Captain Arthur L. Rogers | from 4th Brig. |
| 1st Company Richmond Howitzers | Captain John C. Shields | from 1st Brig. |
| Fifth Brigade | Colonel Philip St. George Cocke | |
| 18th Virginia Infantry Regiment | Colonel Robert E. Withers | |
| 19th Virginia Infantry Regiment | Lieutenant Colonel John B. Strange | |
| 28th Virginia Infantry Regiment | Colonel Robert T. Preston | |
| 49th Virginia Infantry Regiment (3 cos.) | Colonel William Smith | |
| Schaeffer’s Virginia Infantry Battalion | Captain F. B. Schaeffer | |
| Lynchburg (Va.) Artillery | Captain H. G. Latham | |
| Sixth Brigade | Colonel Jubal A. Early | |
| 5th North Carolina State Troops | Colonel Duncan McRae | from 4th Brig. |
| 13th North Carolina Volunteers | Colonel John Franklin Hoke | |
| 24th Virginia Infantry Regiment | Lieutenant Colonel Peter Hairston | |
| Washington Artillery, 4th Company | Lieutenant Charles W. Squire | |
| Seventh Brigade | Colonel Nathan G. Evans | |
| 2nd Louisiana Battalion | Lieutenant Colonel Charles de Choiseul | to 8th Brig. |
| 13th Mississippi Infantry Regiment | Colonel William Barksdale | from 6th Brig. |
| 17th Mississippi Infantry Regiment | Colonel Winfield S. Featherston | |
| 18th Mississippi Infantry Regiment | Colonel Erasmus R. Burt | from 3rd Brig. |
| Davidson’s (Va.) Battery | Lieutenant G. S. Davidson | |
| Eighth Brigade | Colonel Isaac G. Seymour | |
| 2nd Louisiana Battalion | Lieutenant Colonel Charles de Choiseul | from 7th Brig. |
| 6th Louisiana Infantry Regiment | Lieutenant Colonel Louis Lay | from 2nd Brig. |
| 7th Louisiana Infantry Regiment | Colonel Harry T. Hays | from 6th Brig. |
| 8th Louisiana Infantry Regiment | Colonel Henry B. Kelly | from 1st Brig. |
| Independent Command Leesburg | ||
| 8th Virginia Infantry Regiment | Colonel Eppa Hunton | |
| Hampton’s (S.C.) Legion | Captain James Conner |
OFFICIAL RECORDS: Series 1, vol 2, Part 1 pp. 999-1000