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Graham, J. D. (James Duncan), 1799-1865.,Gamble, William.,United States. Army. Corps of Topographical Engineers.
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Illinois, United States
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Chicago, Illinois, United States
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1. Entrance to Chicago harbor showing the state of the bar April 4th, 1854 before the dredging of the direct ship channel was commenced.
1856. Graham, J. D. (James Duncan), 1799-1865.,Gamble, William.,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...