Sheboygan harbor, Wisconsin from survey made between the 19th & 24th of August 1856 by assistant John O'Donoghue under the directionof Brevet Lieut. Col. J.D. Graham, Major, U.S. Corps of Topographical Engineers. Superintending Engineer of Lake Michigan Works.
Graham, J. D. (James Duncan), 1799-1865.,O'Donoghue, John, 1946-,United States. Army. Corps of Topographical Engineers.
Depths shown by soundings and isolines. "Accompanying Lt. Colonel J.D. Graham's annual report (no. 161) to the Chief Topographical Engineer, dated Chicago, November 15th 1856." "Map G. No. 45." 1 map; 65 x 101 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.