How to Pronounce Alastair Denniston
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Dec 01, 1881 Greenock, Scotland, United Kingdom Died on 01 Jan 1961 (aged 79)
British cryptographer and Royal Navy Commander
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About Alastair Denniston
- Commander Alexander "Alastair" Guthrie Denniston (1 December 1881 – 1 January 1961) was a Scottish codebreaker in Room 40, deputy head of the Government Code and Cypher School (GC&CS) and field hockey player.
- Denniston was appointed operational head of GC&CS in 1919 and remained so until February 1942.
