Bache, A. D. (Alexander Dallas), 1806-1867 and Peirce, Benjamin, 1809-1880. the surveys for this chart were made under the direction of A.D. Bache and Benjamin Peirce ; triangulation by G.A. Fairfield ; topography by F.W. D... U.S. Coast Survey.
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the triangulation was executed by G.A. Fairfield ; the topography by F.W. Dorr ; the hydrography by J.S. Bradford. Depths shown by soundings and is... U.S. Coast Survey.