Rockwell, Cleveland, 1837-1907, Davidson, George, 1825-1911, and Brownson, Willard H. (Willard Herbert), 1845-1935. Issued, June 1888, F.M. Thorn, Superintendent. Verified : B.A. Colonna, Assistant in charge of Office ; Triangulation by C. Rockwell, Assistant ; T... U.S. Coast and Geodetic Survey,.
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Rockwell, Cleveland, 1837-1907, Davidson, George, 1825-1911, Dall, William Healey, 1845-1927, and Brownson, Willard H. (Willard Herbert), 1845-1935. Issued, May 1888, F.M. Thorn, Superintendent. Verified: B.A. Colonna, Assistant in charge of Office ; [Triangulation, Topography, and Hydrography] ... U.S. Coast and Geodetic Survey,.
Rockwell, Cleveland, 1837-1907, Davidson, George, 1825-1911, and Brownson, Willard H. (Willard Herbert), 1845-1935. Issued, May 1888, F.M. Thorn, Superintendent. Verified: B.A. Colonna, Assistant in charge of Office ; Triangulation [and topography] by C. Rockwell... U.S. Coast and Geodetic Survey,.