First Division, Brig.-Gen. Daniel Tyler :-- First Brigade, Col. E. D. Keyes, 2d Maine, 1st, 2d, and 3d Connecticutt; Second Brigade, Brig.-Gen. R. C. Schenck, 2d New York, 1st and 2d Ohio, Battery E. 2d U.S. Artillery; Third Brigade, Col. W. T. Sherman, 13th, 69th, and 79th New York, 2d Wisconson, Battery E. 3d U.S. Artillery; Fourth Brigade, Col. I. B. Richardson, 1st Massachusetts, 12th New York, 2d and 3d Michigan, Battery G. 1st U.S. Artillery, Battery M. 2d U.S. Artillery.
Second Division, (1) Col. David Hunter (wounded); (2) Col. Andrew Porter :-- First Brigade, Col. Andrew Porter, 8th (militia), 14th and 27th New York, Battalion U.S. Infantry, Battalion U.S. Marines, Battalion U.S. Cavalry, Battery D. 5th U.S. Artillery; Second Brigade, Col. A. E. Burnside, 2d New Hampshire, 1st and 2d Rhode Island, 71st New York
Third Division, Col. S. P. Heintzelman (wounded) :-- First Brigade, Col. W. B. Franklin, 5th and 11th Massachusetts, 1st Minnesota, Battery I. 1st U.S. Artillery; Second Brigade, Col. O. B. Wilcox (wounded and captured), 11th New York (Fire Zouaves), Col. O. O. Howard, 3d, 4th, and 5th Maine, 2d Vermont
Fourth (Reserve) Division (not engaged), Brig.-Gen. Theodore Runyon, 1st, 2d, 3d, and 4th New Jersey (three months), 1st, 2d, and 3d New Jersey, 41st New York (three years).
Fifth Division, Col. Dixon S. Miles :-- First Brigade (in reserve and not engaged), Col. Louis Blenker, 8th New York (Volunteers), 29th and 39th New York, 27th Pennsylvania, Battery A. 2d U. S. Artillery, Rookwood's New York Battery; Second Brigade, Col. Thomas A. Davies, 16th, 18th, 31st, and 32d New York, Battery G. 2d U.S. Artillery.
Source: Official Records
Commentary
Organization of Federal Army at 1st Manassas, commanded by Brigadier-General Irvin McDowell