ence S. Brown and James S. Wadsworth, New York State Artillery; Acting Inspector-General--Major William H. Wood, Seventeenth United States Infantry; Engineers-Major John G. Barnard and First Lieutenant Frederick F. Prime; Topographical Engineers--Captain Amiel W. Whipple, First Lieutenant Henry L. Abbot, and Second Lieutenant Haldimand S Putnam; Quartermaster's Department-Captain O. H. Tillinghast; Commissary of Subsistence-Horace F. Clark; Surgeon — William S; King; Assistant Surgeon--David L. Magruder.
First Division.--General Tyler. Four brigades.
The First Brigade, commanded by Colonel Erasmus D. Keyes, of the Eleventh United States Infantry, was composed of the First, Second, and Third Regiments of Connecticut Volunteers, the Fourth Maine Volunteers, Captain Varian's Now York Battery, and Company B of the Second United States Cavalry.
The Second Brigade, under Brigadier-Genera, R. C. Schenck, consisted of the First and Second Ohio Volunteers, the Second New York Volunteers,