1856. Graham, J. D. (James Duncan), 1799-1865, O'Donoghue, John, 1946-, and United States. Army. Corps of Topographical Engineers. The soundings are in feet & decimals of a foot. "Accompanying Lt. Colonel J.D. Graham's annual report (no. 161) to the Chief Topographical Engineer...
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1856. Graham, J. D. (James Duncan), 1799-1865, O'Donoghue, John, 1946-, and 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 ...