The Fourth Alabama Painting by Don Troiani

Army of Northeastern Virginia

The complete Orders of Battle for troops of the Army of Northeastern Virginia, commanded by Brigadier General I McDowell.

Brigadier General Irvin McDowell

Brigadier General Irvin McDowell was assigned to command the Army of Northeastern Virginia on 28 May, 1861

Major I McDowell was appointed brigadier general, United States Army, on on 14 May, 1861, and the part of Virginia east of the Allegheny Mountains and north of the James River, excluding an area of sixty miles around Fort Monroe, Old Comfort Point, Virginia, was organised as the Department of Northeastern Virginia on 27 May, 1861. Brigadier General I McDowell established Headquarters at Arlington House, Fairfax County, Virginia, on 28 May, 1861, and the Army of Northeastern Virginia was organised on 8 July, 1861.

Brigadier General T Runyon, New Jersey State Militia, was assigned to command the Fourth (Reserve) Division, Army of Northeastern Virginia, and the 17th, 21st, and 40th New York Infantry and the 25th and 28th New York State Militia during the first battle of Bull Run.

The 15th, 25th, 26th, and the 37th New York Infantry were temporarily assigned to McCunn's Brigade, under the command of Acting Brigadier General J H McCunn, at Washington, D. C., on 20 July, 1861, and was assigned as support to the Army of Northeastern Virginia during the first battle of Bull Run (See McCunn's Brigade).

United States Army

The 2nd United States Cavalry, Companies, B, E, G, and I, under the command of Major G H Thomas, were ordered to Washington, D. C., on 6 May, 1861, and arrived in the morning on 10 May, 1861 (See the United States Battalion Cavalry). Company B was assigned to the First Brigade, First Division, Army of Northeastern Virginia; Companies G and I to the First Brigade, Second Division, Army of Northeastern Virginia; and Company I to the First Brigade, Third Division, Army of Northeastern Virginia, on 8 July, 1861. The 1st United States Cavalry, Companies A and E, arrived at Washington, D. C., on 9 July, 1861, and were assigned to the First Brigade, Second Division, Army of Northeastern Virginia, shortly afterwards. The 2nd United States Dragoons, Company K, was assigned as escort to Colonel D Hunter, Second Division, Army of Northeastern Virginia, on 19 July, 1861. The United States Battalion Infantry, under the command of Major O L Sheppard, was organised at Chambersburg, Franklin County, Pennsylvania, on 10 June, 1861, and was ordered to Washington, D. C., in the morning on 18 June, 1861 (See the United States Battalion Infantry). The United States Battalion Infantry arrived by the Washington Branch, Baltimore & Ohio Railroad, at 1 AM on 20 June, 1861, and was assigned to the First Brigade, Second Division, Army of Northeastern Virginia, on 8 July, 1861. The 1st United States Artillery, Light Company I, and the 2nd United States Artillery, Light Company E, arrived at Washington, D. C., on 29 January and 7 February, 1861, respectively; the 2nd United States Artillery, Light Company G, on 4 May, 1861; the 3rd United States Artillery, Light Company E, and the 2nd United States Artillery, Light Company D, on 10 May, 1861; and the 1st United States Artillery, Light Company G, in May 1861, and were assigned to the Army of Northeastern Virginia on 8 July, 1861. The 2nd United States Artillery, Light Company M, arrived at Washington, D. C., on 14 July, 1861, and was assigned to the Army of Northeastern Virginia at Centreville, Fairfax County, Virginia, on 19 July, 1861. The 2nd United States Artillery, Light Company A, arrived at Washington, D. C., on 16 July, 1861, and was assigned to the Army of Northeastern Virginia near Fairfax Courthouse, Fairfax County, Virginia, on 17 July, 1861.

Army of the Shenandoah or Upper Potomac

Pennsylvania and Delaware were assigned to the Department of Pennsylvania, under the command of Major General R Patterson, on 27 April, 1861, and he was assigned to command the Army of the Shenandoah or Upper Potomac on 2 June, 1861 (See the Army of the Upper Potomac). The First Brigade, First Division, Army of the Upper Potomac, Colonel G H Thomas, and the Second Brigade, Second Division, Army of the Upper Potomac, Brigadier General G C Wynkoop, were organised at Chambersburg, Franklin County, Pennsylvania, on 4 June, 1861, and the Third Brigade, First Division, Army of the Upper Potomac, Brigadier General E A Williams, and the Fourth Brigade, First Division, Army of the Upper Potomac, Colonel D S Miles, were organised at Chambersburg, Franklin County, Pennsylvania, on 6 and 10 June, 1861, respectively. The Fifth Brigade, Second Division, Army of the Upper Potomac, Brigadier General J S Negley, was organised at Hagerstown, Washington County, Maryland, between 16 and 19 June, 1861, and the Sixth Brigade, Second Division, Army of the Upper Potomac, Colonel J J Abercrombie, was organised at Hagerstown, Washington County, Maryland, on 20 June, 1861. The Seventh and Eighth Brigade, Third Division, Army of the Upper Potomac, Brigadier General C P Stone and Acting Brigadier General D Butterfield, were organised at Martinsburg, Berkeley County, Maryland, on 8 and 10 July, 1861, respectively. The Army of the Shenandoah or Upper Potomac was ordered to Harpers Ferry, Jefferson County, Virginia, at 3 AM on 21 July, 1861, and arrived via Charlestown, Jefferson County, Virginia, the same day.

Departure of Troops

Varian's Light Artillery, 8th New York State Militia, Company I, under the command of Captain J M Varian, was mustered in United States service for three months on 18 April, 1861, and voted to be discharged as their term of service expired on 17 July, 1861 (See theVarian's Light Artillery). The company was ordered to return their six 6 pounder smoothbores to the United States Ordnance Department by First Lieutenant F E Prime, United States Corps Engineers, at 10 PM on 20 July, 1861, and was proceeded to Alexandria, Virginia, at 1 AM on 21 July, 1861. The 4th Pennsylvania Infantry were mustered in United States service for three months on 20 April, 1861, and voted to be discharged on 20 July, 1861 (See the 4th Pennsylvania Infantry). The regiment was ordered to Washington, D. C., the same day and was mustered out at Harrisburg, Pennsylvania, on 27 July, 1861.

The Army of the Potomac

After the first battle of Bull Run, Manassas, the Department of Northeastern Virginia, commanded by Brigadier General I McDowell, the Department of Washington D. C., commanded by Brigadier General J K Mansfield, the Department of the Maryland (formerly Annapolis), commanded by Major General J A Dix and the Department of Pennsylvania, commanded by Major General R Patterson, were consolidated into the Department of the Potomac (Army of the Potomac), commanded by Major General G B McClellan, on 25 July, 1861.

If you have information regarding brigade or company assignments and/or organisation please contact Jonathan Soffe at info@firstbullrun.co.uk.