About Leonard James Hooper
Lived 1914 – 1994 (aged 79). Leonard James Hooper was a cryptographer and engineer.
Sir Leonard James (Joe) Hooper (23 July 1914 – 19 February 1994) was director of the British signals intelligence agency, GCHQ, a post he held from 1965 to 1973.
Career Educated at Alleyn's School in South East London and Worcester College, Oxford, Hooper joined the Government Code and Cypher School in August 1938, and was based at Bletchley Park during World War II. He stayed on with the organisation after the war, which became GCHQ, and, after five years as deputy director, served as its director from January 1965 to November 1973.
In the mid-1970s he served as the Intelligence Co-ordinator in the Cabinet Office, where he acted as a general overseer of the UK Intelligence Community.
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Important facts
Contemporaries
People whose lives overlapped Leonard James Hooper's
Frequently asked questions
Who was Leonard James Hooper?
GCHQ director
When was Leonard James Hooper born?
Leonard James Hooper was born on 23 July 1914.
When did Leonard James Hooper die?
Leonard James Hooper died on 19 February 1994.
What was Leonard James Hooper's occupation?
Leonard James Hooper was a cryptographer and engineer.
Sources & further reading
· Wikipedia: Leonard James Hooper
Cite this page
APA: Biography.guide. (2026). Leonard James Hooper. https://biography.guide/leonard-james-hooper/
MLA: "Leonard James Hooper." Biography.guide, https://biography.guide/leonard-james-hooper/.
Chicago: "Leonard James Hooper." Biography.guide. https://biography.guide/leonard-james-hooper/.
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