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Edwin Thomas Layton (7 April 1903 – 12 April 1984)〔("California Death Records search Results" ''rootsweb.ancestry.com'' ) 5 April 2010〕 was a Rear Admiral in the United States Navy, who is most noted for his work as cryptanalyst during World War II. ==Career== Edwin Thomas Layton was born on April 7, 1903 in Nauvoo, Illinois as a son of George E. Layton and his wife Mary C.Layton. Layton attended the United States Naval Academy at Annapolis, Maryland and graduated in 1924. Layton spent next five years with the Pacific Fleet aboard the cruiser USS ''West Virginia'' and destroyer USS ''Chase''. In 1929, Layton was one of a small number of naval officers selected to go to Japan for language training. Significantly, on his voyage to Japan he met another young naval officer, Joseph J. Rochefort, assigned to the same duty. Both became intelligence officers, Rochefort specializing in decryption efforts, Layton in using intelligence information in war planning. Layton and Rochefort, both of whom were in Pearl Harbor, worked closely together in the months before the attack, largely trying to figure out what information was being denied them by Washington, and even more closely after the war began, especially in the month before the Battle of Midway. They both made signal contributions to that victory. Layton was assigned to the American Embassy in Tokyo as a naval attaché where he remained for three years. While in Japan, he met Admiral Isoroku Yamamoto on several occasions. The last four months he spent in Peiping (Beijing), China, as assistant naval attaché at the American Legation. His linguistic ability and fluency in Japanese proved to be assets as his career progressed, even more so as World War II began in Europe. During the 1930s, Layton served two tours of duty in the Navy Department’s Office of Naval Intelligence, in 1933 and again in from 1936 to 1937, but he also saw sea duty. He had a three-year stint in the battleship Pennsylvania where he received commendations for gunnery excellence. In 1937, he returned to Tokyo for two years as assistant naval attaché at the American Embassy. This was followed by a one-year tour of duty as Commanding Officer of USS ''Boggs'' (AG-19). Exactly one year to the day before the attack on Pearl Harbor, Layton became Combat Intelligence Officer on the staff of Admiral Husband E. Kimmel, Commander-in-Chief of the United States Pacific Fleet, which had recently been moved from its base in San Pedro, California to Pearl Harbor — over the objections of Admiral James O. Richardson, whom Kimmel replaced. Layton was in charge of all intelligence in the Pacific Ocean area. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Edwin T. Layton」の詳細全文を読む スポンサード リンク
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