U.S. Lake Survey, Meade, George Gordon, 1815-1872, Barney, Joshua, 1799 or 1800-1867, Dougal, William H., 1822-1895, and United States. Army. Corps of Topographical Engineers
Maury, Matthew Fontaine, 1806-1873, United States. Bureau of Ordnance and Hydrography, United States. Hydrographic Office, and United States Naval Observatory