Joel Greenberg

GCHQ website- 13 September 2017

GCHQ launches a new biography of our first Head, Commander Alastair Denniston

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Navy Net (the Unofficial Royal Navy community) - 16 November 2017

"This is much more than a biography of Alexander ('Alastair') Guthrie Davidson ('AGD'), 1881-1961, wheelhorse of the British Signal Intelligence (SIGINT) effort at the start of Hitler's War. It is also the story of SIGINT itself from 1914 onwards".
 

Book Reviews by Nicholas Hoare for Vermont PBS - 10 October 2017

"...this handsome book.  It is an extremely thorough analysis of the man's thinking, strategy and dealings as a human being with fellow human beings to form a team which has gone down in history".

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Image: GCHQ website announces the launch of the biography of its first Head, Alastair Denniston.