try and two batteries of regular United States artillery. These three divisions and their cavalry and batteries participated in the battle. The Fourth division, under Brig.-Gen. T. Runyon, and the Fifth, under Col. D. S. Miles, each composed of two brigades of infantry, two batteries of regular United States artillery, and one volunteer battery, were held in reserve, in front of and at Centreville, and in its rear, and did not participate in the battle, except that the Fifth had some skirmishing while covering the retreat of the Federal army. The Fifth division guarded the roads leading to the Potomac and did not get nearer to Centreville than about Fairfax, 7 miles eastward. The official returns for July 17th show that McDowell had 34,127 men present for duty. His adjutant-general claims that the rank and file of his army that participated in the battle of Bull Run numbered 18,572, with 24 pieces of artillery. This does not include the two divisions in reserve, which had over 11,000 men and 25 pieces of artillery.[1]
The Confederate forces at Bull Run were embraced in the army of the Potomac, which, under Brig.-Gen. G. T. Beauregard, had been holding Manassas and the line of the Potomac east of the Blue ridge, and the army of the Shenandoah, under Gen. J. E. Johnston, which reinforced the former, from the Shenandoah valley, during the engagement. The army of the Potomac, before the battle, consisted of the First brigade, one North Carolina and four South Carolina regiments, under Brig.-Gen. M. L. Bonham; Second brigade, two Alabama and one Louisiana regiments, under Brig.-Gen. R. S. Ewell; Third brigade, two Mississippi and one South Carolina regiments, under Brig.-Gen. D. R. Jones; Fourth brigade, one North Carolina and three Virginia regiments, under Brig.-Gen. James Longstreet; Fifth brigade, one Louisiana battalion and five Virginia regiments, under Col. P. St. George Cocke; Sixth brigade, two Virginia, one Mississippi and one South Carolina regiment, under Col. J. A. Early; and not brigaded, two Louisiana and one South Carolina infantry regiment, two cavalry regiments and one artillery battalion, and five artillery batteries.
- ↑ Beauregard states, in a paper published since the war, that the combined Confederate army at Manassas mustered 29,188 men, rank and file, and 55 guns; that of these, 21,923 men, infantry, cavalry and artillery, and 29 guns, belonged to his army of the Potomac.
