...rward became first commander of the Army of the Potomac, was aid-de-camp to General John E. Wool. George H. Thomas was second lieutenant, Third Artillery, and was brevetted three times for gallantry; Joseph Hooker was assistant adjutant general on the staff of General Persifor F. Smith; Gideon J. Pillow was brevetted three times. Ambrose E. Burnside joined the army on its march, with some recruits. Winfiel...