Graham, J. D. (James Duncan), 1799-1865O'Donoghue, John, 1946-United States. Army. Corps of Topographical EngineersThe soundings are in feet & decimals of a foot. "Accompanying Lt. Colonel J.D. Graham's annual report (no. 161) to the Chief Topographical Engineer, dated Chicago, November 15th 1857." "Map G. No. 46." 1 map; 51 x 61 cmJPEGb10de73a-238b-4f07-9769-10090a5c5724engPublicManitowoc harbor, Wisconsin from survey made betweenteh 14th & 19th of August 1856 by assistant John O'Donoghue, under the direction of Brevet Lieut. Col. J.D. Graham, Major, U.S. Top. Engineers. Superintending Engineer of Lake Michigan Works.MapsWisconsin--Manitowoc HarborWisconsin1856University of Michigan