Map of the battle field of Gettysburg, July 1st, 2nd, 3rd 1863. First day battle. Published by authority of the Hon. the Secretary of War, Office of the Chief of Engineers U.S. Army. 1876. Positions of troops compiled and added for the government by John B. Bachelder. Topography engraved by Julius Bien, 16 Park Place N. Y. Position & lettering by Louis E. Newman, 36 Vesey St., N.Y. Printed by Endicott & Co., New York.
