Hugh Sinclair
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| Sir Hugh Sinclair | |
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| Occupation | Royal Navy admiral; Chief of SIS 1923–1939 |
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Sir Hugh "Quex" Sinclair was head of the Secret Intelligence Service from 1923 to 1939.[1]
Career
Sinclair was the second Chief of the Secret Intelligence Service. He had earlier been Director of Naval Intelligence (1919–1921) and then Chief of the Submarine Service, before succeeding Cumming as 'C' in 1923.[2] He died in November 1939 and Stewart Menzies succeeded him.[3] SIS lists him among its former Chiefs.[4]
Bletchley Park
In May 1938 Sinclair bought Bletchley Park with his own money, because government funding was not available, as a wartime site for GC&CS and SIS.[5][6]
Notes
- ↑ Stephen Dorril, MI6: Inside the Covert World of Her Majesty's Secret Intelligence Service, Touchstone, 2002, p.4.
- ↑ Tony Sale, Virtual Wartime Bletchley Park: history database, codesandciphers.org.uk (summarising Nigel West, MI6).
- ↑ Denniston's support for a culture of individualism and ingenuity, GCHQ.
- ↑ Our Chief, Secret Intelligence Service, accessed 16 October 2026.
- ↑ Kathryn A. Morrison, 'A Maudlin and Monstrous Pile': The Mansion at Bletchley Park, Buckinghamshire, Transactions of the Buckinghamshire Archaeological Society, vol. 53, 2009.
- ↑ E152 – Sinclair in Focus, Bletchley Park Trust podcast.