Public figure
Ralph Tester Silver
British codebreaker (1901–1998)
Ralph Tester is a British codebreaker (1901–1998). Born 1901. Associated with Unilever, BBC Monitoring.
At a glance
Silver- Born
- 1901-06-02
- Died
- 1998-05
- Citizenship
- United Kingdom
- Occupations
- cryptographer
- Also known as
- Ralph Paterson Tester
Education and professional journey
SilverWork
Personal journey
- Languages
- English, German
Due diligence
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What we have, and what we might have wrong
This page is assembled from the sources below. Each section carries its own grade. Silver 2 sections
- Wikidata, as of 3 Oct 2026. Community-curated knowledge base (CC0)
Last rebuilt 3 Oct 2026. We may be wrong: names get matched to the wrong record, people change jobs, companies change status. What gets seen and reported gets fixed. How grades work.