sentences:  Leonard James Hooper
  
  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.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.