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 ...
D. R. Nicoll
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 ...