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Cooper, Joshua Edward Synge (1901–1981), cryptanalyst and intelligence officer  

D. R. Nicoll

revised

Cooper, Joshua Edward Synge (1901–1981), cryptanalyst and intelligence officer, was born on 3 April 1901 in Fulham, the son of Richard Edward Synge Cooper, a chartered engineer, and his wife, Mary Eleanor, youngest daughter of William Burke. Joshua was the eldest of five children, four sons and a daughter, all brought up in ...

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Cover Denniston, Alexander Guthrie (1881–1961)

Denniston, Alexander Guthrie (1881–1961)  

Maker: Lafayette

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Alexander Guthrie Denniston (1881–1961) by Lafayette, 1933 © National Portrait Gallery, London

Article

Denniston, Alexander Guthrie [Alastair] (1881–1961), cryptanalyst and intelligence officer  

F. H. Hinsley

revised by Ralph Erskine

Denniston, Alexander Guthrie [Alastair] (1881–1961), cryptanalyst and intelligence officer, was born on 1 December 1881 at Greenock, the eldest child of James Denniston, a medical practitioner, and his wife, Agnes Guthrie. He was educated at Bowdon College, Cheshire, and at the universities of ...