Dilly Knox
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Alfred Dillwyn "Dilly" Knox CMG |
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|---|---|
| Born |
Alfred Dillwyn Knox 23 July 1884 |
| Died | 27 February 1943 (aged 58) |
| Cause of death | Lymphoma |
| Nationality | English |
| Other names | Dilly |
| Citizenship | British |
| Education | |
| Alma mater | King's College, Cambridge |
| Occupation | |
| Employer | |
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| Children |
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| Parent(s) | Edmund Arbuthnott Knox |
| Relatives | |
Alfred Dillwyn "Dilly" Knox, CMG (23 July 1884 – 27 February 1943) was a British classics scholar and papyrologist at King's College, Cambridge and a codebreaker. As a member of the World War I Room 40 codebreaking unit, he helped decrypt the Zimmermann Telegram which brought the USA into World War I. He joined the GC&CS at the war's end. As Chief Cryptographer, Knox played an important role in the Polish-French-British meetings on the eve of World War II which disclosed Polish cryptanalysis of the Axis Enigma to the Allies. At Bletchley Park he worked on the cryptanalysis of Enigma ciphers until his death in 1943. He built the team and discovered the method that broke the Italian Naval Enigma, producing the intelligence credited with Allied victory at the Battle of Cape Matapan. In 1941, Knox broke the Abwehr Enigma. By the end of the war, Intelligence Service Knox had disseminated 140,800 Abwehr decrypts, including intelligence important for D-Day.
Dillwyn Knox, the fourth of six children, was the son of Edmund Arbuthnott Knox, tutor at Merton College and later Bishop of Manchester; he was the brother of E. V. Knox, Wilfred Knox and Ronald Knox, and uncle of the novelist Penelope Fitzgerald.
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