The Fourth Alabama Painting by Don Troiani

Reserves, Army of the Potomac

Twelfth Alabama Infantry

Nine companies arrived at Manassas Junction on 22 July, 1861, and was not present at the first battle of Manassas

COLONEL R T JONES
LIEUTENANT COLONEL T O'HARA
MAJOR E D TRACY

Company A Guard Lafayette: CAPT. G HEUILLY
Company B Coosa Volunteers: CAPT. J H BRADFORD
The company was organised at Wetumpka, Alabama, and was mustered in Confederate service at Camp Bradford, Coosa County, Alabama, on 17 June, 1861. The company was stationed at Fort Morgan, Mobile bay, Alabama, between 28 February and 5 April, 1862.
Company C Mobile Independent Rifles: CAPT. A STYKES
The company was stationed at Richmond, Virginia, between 27 May and 30 June, 1861.
Company D Coffee County Rangers or Volunteers: CAPT. J C BROWN
The company was organised at Coffee County, Alabama, between May and July 1861, and was stationed at Richmond, Virginia, between 27 May and 30 June, 1861.
Company E DeKalb Invincibles: CAPT. R W HIGGINS
Company F Macon Confederates: CAPT. R F LIGON
The company was organised at Tuskegee, Alabama, and arrived at Richmond, Virginia, on 10 June, 1861. The company was mustered in Confederate service on 17 June, 1861 and was detained at Richmond, Virginia, waiting for other companies.
Company G Paint Rock River or North Alabama Sharpshooters: CAPT. A S BIBB
The company was organised at Woodville, Jackson County, Alabama, and was ordered to Richmond, Virginia, on 26 June, 1861. The company was assigned on 19 July, 1861.
Company H Magnolia Rifles or Guards: CAPT. B B GAYLE
Company I Southern Foresters: CAPT. W T WALTHALL
The company was organised at Mobile, Alabama, and was ordered to proceed to Richmond, Virginia, on 4 July, 1861. The company was mustered in Confederate service on 1 August, 1861.
Company K Tom Watts Rebels: CAPT. W H C PRICE
The company was organised at Auburn, Macon County, Alabama, in May and June 1861 and was ordered to proceed to Richmond, Virginia, on 20 July, 1861. The company was ordered to Camp Pickens, Manassas Junction, on 16 August, 1861, and was assigned to the 12th Alabama Infantry at Camp Walker, near Centreville, Virginia.

Source

Southern Historical Society Papers, Volume 33: The Twelfth Alabama Infantry, Confederate States Army, by Robert E Park, late captain, Company E, 12th Alabama Infantry

Supplement to the Official Records: Part II, Record of Events, Volume 1, Serial No.13: Record of events for Twelfth Alabama Infantry, May 1861–October 1864, edited by James B Hewett

Alabama: Her history, resources, war record, and public men from 1540 to 1872, by Willis Brewer

Notes

The 12th Alabama Infantry was organised at Richmond, Virginia, in July 1861 and was ordered to Camp Pickens, Manassas Junction, with nine companies on 22 July, 1861. The regiment was detailed to bury the Federal dead and was ordered to Camp Walker, near Centreville, Virginia, on 23 July, 1861. The Tom Watts Rebels was ordered to Camp Pickens, Manassas Junction, on 16 August, 1861, and was assigned to the 12th Alabama Infantry at Camp Walker, near Centreville, Virginia. The The 12th Alabama Infantry was ordered to Sangster's Crossroads, Virginia, on 25 August, 1861.

On 25 July 1861, the Army of the Potomac was reorganised and the 12th Alabama Infantry was assigned to the Second Brigade, First Corps, Army of the Potomac, under the command of Brigadier General R S Ewell.