Email Record: Pensacola, Markham Ferry, and Fort Gibson Reservoirs on Grand (Neosho) River, Okla. Letter from the Secretary of War. Transmitting a letter from the Chief of Engineers, United States Army, dated January 4, 1939, submitting a report, together with accompanying papers and illustrations, on a preliminary examination and survey of Pensacola, Markham Ferry, and Fort Gibson Reservoirs on Grand (Neosho) River, Okla., authorized by the Flood Control Act approved June 22, 1936.