prepared by command of Maj. Gen. George B. McClellan U.S.A., commanding Army of the Potomac ; compilation under the direction of Brig. Gen. A.A. Humphreys, by Capt. H.L. Abbot, Top Engrs ; engraved by W.H. Dougal
Other Title
At head of title: Campaign map, Army of the Potomac, map no. 3