1856. Graham, J. D. (James Duncan), 1799-1865 and United States. Army. Corps of Topographical Engineers. The soundings are in feet & tenths of a foot. Includes sailings directions and description of the buildings at old Fort Dearborn. "Map G. No. 38." ...
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1858. Graham, J. D. (James Duncan), 1799-1865 and United States. Army. Corps of Topographical Engineers. The soundings are in feet & tenths of a foot. "Accompanying Lt. Colonel J.D. Graham's annual report (no. 161) to Chief Topograpical Engineer, dated...
1857. Graham, J. D. (James Duncan), 1799-1865 and United States. Army. Corps of Topographical Engineers. The soundings are in feet & tenths of a foot. "Accompanying Lt. Colonel J.D. Graham's annual report (no. 200) to Chief Top. Engineer, dated Septemb...
1856. Gamble, William, Graham, J. D. (James Duncan), 1799-1865, and United States. Army. Corps of Topographical Engineers. The soundings are in feet & tenths. Those expressed in small figures were made by Mr. Wm. Gamble, U.S. Agent on April 4th 1854. The 12 ft. curve is...