Herron, W. H. (William Harrison), b. 1865.U.S. Coast and Geodetic Survey.Geological Survey (U.S.)United States, Florida, Duval County, 30.33544, -81.64801United States, Florida, Nassau County, 30.61058, -81.77142United States, Georgia, Camden County, 30.92249, -81.63639Marshall, R. B. (Robert Bradford), 1867-1949.1944Relief shown by contours, isolines and spot heights."Surveyed in 1917-1918.""Surveyed in cooperation with the War Department.""R.B. Marshall, Chief Geographer. W.H. Herron, Geographer in charge. Topography by M. Blundon, E.J. Essick, C.W. Goodlove, R.L. Harrison, E.S. Huntley, H.R. Kilmer, H. Roberts, and H.E. Wallace. Control by U.S. Coast and Geodetic Survey, R.G. Clinite, C.B. Kendall, J.B. Leavitt, S.L. Parker, and H.S. Senseney.""Contour interval 10 feet.""Datum is mean sea level."Includes "The Toppgraphic Maps of the United States" and "Standard Symbols" legend on verso.engEdition of 1936 (first published in 1919) reprinted 1944.Scale 1:62,500 ; polyconic proj. (W 81°45′-W 81°30′/N 30°45′-N 30°30′).[Washington, D.C.] : U.S. Geological Survey, 1944.http://rightsstatements.org/vocab/NoC-US/1.0/Florida--Maps, TopographicGeorgia--Maps, TopographicNassau County (Fla.)--Maps, TopographicDuval County (Fla.)--Maps, TopographicCamden County (Ga.)--Maps, TopographicFlorida-Georgia St. Marys quadrangle /St. Marys quadrangleSaint Marys quadrangleSt. Marys, Fla.-Ga.StillImage