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 was assigned to command the Army of Northeastern Virginia on 28 May, 1861

Brigadier General Irvin McDowell, Army of Northeastern Virginia

Assistant Adjutant General & Brevet Major I McDowell, United States Army, was appointed brigadier general, United States Army, by General Orders No.64, War Department, Adjutant General's Office, Washington, D. C., on 22 August, 1861, dated 14 May, 1861, and was assigned to command the Department of Northeastern Virginia, Headquarters at Arlington House, Fairfax County, Virginia, by General Orders No.26, War Department, Adjutant General's Office, Washington, D. C., on 27 May, 1861. The Army of Northeastern Virginia was organised by General Orders No.13, Headquarters, Department of Northeastern Virginia, Arlington, Alexandria County, Virginia, on 8 July, 1861.

Department of Washington

A military department, taken from the Department of the East, and called the Department of Washington, was constituted, consisting of the State of Maryland, and the District of Columbia according to its original boundary, under the command of Brevet Colonel & Lieutenant Colonel C F Smith, 10th United States Infantry, by General Orders No.9, Paragraph I, War Department, Adjutant General's Office, Washington, D. C., on 9 April, 1861, and Inspector General & Colonel J K F Mansfield, United States Army, was assigned to command the Department of Washington by General Orders No.12, Paragraph I, War Department, Adjutant General's Office, Washington, D. C., on 27 April, 1861 (See the Department of Washington).

Departments Of Annapolis and Maryland

A new Military Department, called the Department of Annapolis, Headquarters at that city, included the country for twenty miles on each side of the railroad from Annapolis to the city of Washington, as far south as Bladensburg, Prince George's County, Maryland, under the command of Brigadier General B F Butler, Massachusetts Volunteers, by General Orders No.12, War Department, Adjutant General's Office, Washington, D. C., on 27 April, 1861, and Major General J A Dix, United States Volunteers, was assigned to command the Department of Maryland, Headquarters at Baltimore City, Maryland, by General Orders No.46, War Department, Adjutant General's Office, Washington, D. C., on 19 July, 1861 (See the Departments of Annapolis and Maryland).

Department of Pennsylvania

A third Department, called the Department of Pennsylvania, included that State and the State of Delaware and all of Maryland not embraced in the Department of Washington and Department of Annapolis, under the command of Major General R Patterson, Pennsylvania Volunteers, by General Orders No.12, War Department, Adjutant General's Office, Washington, D. C., on 27 April, 1861, and Major General R Patterson was assigned to command the Army of Pennsylvania at Chambersburg, Franklin County, Pennsylvania, on 2 June, 1861 (See the Army of Pennsylvania).

Major General N P Banks, United States Volunteers, was assigned to command the Army of Pennsylvania, and the Department was called the Department of the Shenandoah, Headquarters in the field, by General Orders No.46, War Department, Adjutant General's Office, Washington, D. C., on 19 July, 1861, and Major General R Patterson was discharged by General Orders No.46, Paragraph I, War Department, Adjutant General's Office, Washington, D. C., on 19 July, 1861, dated 27 July, 1861 (See the Army of the Shenandoah).

The counties of Washington and Allegheny in Maryland, and such other parts of Virginia that were covered by the Army in its operations were added to the Department of the Shenandoah by General Orders No.47, Paragraph I, War Department, Adjutant General's Office, Washington, D. C., on 25 July, 1861, and the counties of Prince George, Montgomery, and Frederick were added to the Department of Washington and the remainder of Maryland and all Pennsylvania and Delaware constituted the Department of Pennsylvania, Headquarters at Baltimore City, Maryland, by General Orders No.47, War Department, Adjutant General's Office, Washington, D. C., on 25 July, 1861.

Army of the Potomac

The counties of Prince George, Montgomery, and Frederick were added to the Department of Washington and the Department of Washington and the Department of Northeastern Virginia constituted a geographical Division, under the command of Major General G B McClellan, United States Army, by General Orders No.47, Paragraph I, War Department, Adjutant General's Office, Washington, D. C., on 25 July, 1861, and was assigned to command the Army of the Potomac on 20 August, 1861 (See the Department of Washington).

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