Sketches for compiling map, defences of Philadelphia 1863-64 / Geo. Davidson. [1864?]

ArchivalResource

Sketches for compiling map, defences of Philadelphia 1863-64 / Geo. Davidson. [1864?]

1 ms map : col. ; on sheet 121 x 206 cm.

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SNAC Resource ID: 7150851

UC Berkeley Libraries

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Davidson, George, 1825-1911

http://n2t.net/ark:/99166/w64t6hps (person)

Biography George Davidson - geodesist, astronomer, geographer and engineer - was born in Nottingham, England, on May 9, 1825. In 1832 he came to the United States with his parents, who settled in Pennsylvania. Upon graduation from Central High School, Philadelphia, he was appointed magnetic observer at Girard College Observatory. In 1845 he began his career with the United States Coast Survey as clerk to Superintendent Alexander D...