. "Hydrographer of the Navy" . "Vice-Admiral Sir Percy Douglas KCB CMG FRGS FRAS AICE (1 November 1876 \u2013 4 November 1939) was a British naval officer who specialised in surveying and was Hydrographer of the Navy."@en . . . . "Sir Percy Douglas"@en . "1890Z"^^ . . "*" . "1876Z"^^ . "Douglas, Percy"@en . "1939-11-04Z"^^ . "British admiral" . . . "1932Z"^^ . . "1939Z"^^ . . "(1924\u20131932)" . . . "1876-11-01Z"^^ .