"(1942)" . "(1941\u201342)" . . "1930Z"^^ . . "HMS Chelmer(1943\u201344)" . "(1943)" . . . "Fifth Sea Lord(1962\u201363)" . "(1954\u201355)" . "1912Z"^^ . . . "Flag Officer Sea Training(1960\u201361)" . "British Naval officer" . . "1912-08-27Z"^^ . . "Gretton, Peter"@en . "1992-11-11Z"^^ . . "Vice Admiral Sir Peter William Gretton KCB, DSO & Two Bars, OBE, DSC (27 August 1912 \u2013 11 November 1992) was an officer in the Royal Navy. He was active in the Battle of the Atlantic during the Second World War, and was a successful convoy escort commander. He eventually rose to become Fifth Sea Lord and retired as a vice admiral before entering university life as a bursar and academic."@en . . . . . . "1963Z"^^ . . . . "(1952\u201353)" . "Sir Peter William Gretton"@en . "1992Z"^^ .