Ralph Tester, Date of Birth, Date of Death
TweetRalph Tester
British codebreaker
Date of Birth: 02-Jun-1901
Date of Death: 01-May-1998
Profession: cryptographer
Nationality: United Kingdom
Zodiac Sign: Gemini 
About Ralph Tester
- Ralph Paterson Tester (2 June 1902 – May 1998) was an administrator at Bletchley Park, the British codebreaking station during World War II.
- He founded and supervised a section named the Testery for breaking Tunny (a Fish cipher).
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