Matches in DBpedia 2015-10 for { ?s ?p "William Ward Duffield (November 19, 1823 – June 22, 1907) was an executive in the coal industry, a railroad construction engineer, and an officer in the Union Army during the American Civil War. After the war he was appointed Superintendent of the U.S. Coast and Geodetic Survey."@en }
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- William_Ward_Duffield abstract "William Ward Duffield (November 19, 1823 – June 22, 1907) was an executive in the coal industry, a railroad construction engineer, and an officer in the Union Army during the American Civil War. After the war he was appointed Superintendent of the U.S. Coast and Geodetic Survey.".
- William_Ward_Duffield comment "William Ward Duffield (November 19, 1823 – June 22, 1907) was an executive in the coal industry, a railroad construction engineer, and an officer in the Union Army during the American Civil War. After the war he was appointed Superintendent of the U.S. Coast and Geodetic Survey.".