|Birthname||Gustave Joseph Marie François Alfred Bertrand|
|born on||17 December 1896 at 20:00 (= 8:00 PM )|
|Place||Nice, France, 43n42, 7e15|
|Timezone||LST m2e2015 (is standard time)|
|Astrology data||26°27' 29°51 Asc. 15°30'|
French military intelligence officer, codenamed Bolek, who made a vital contribution to the decryption, by Poland's Cipher Bureau, of German Enigma ciphers, beginning in December 1932. This achievement would in turn lead to Britain's celebrated World War II Ultra operation.
Bertrand retired from the French Secret Service in 1950 and went on to become mayor of Théoule-sur-Mer in southern France.
In 1973, the Paris publishing house Plon published his book, Enigma ou la plus grande énigme de la guerre 1939-1945 (Enigma, or the Greatest Enigma of the War of 1939-1945). The book, one of the principal primary sources on the history of Enigma decryption, for the first time gave a detailed account of the some eleven years of Franco-Polish collaboration in breaking and reading Enigma before and during World War II.
He died on 23 May 1976, aged 79, in Toulon.
- associate relationship with Rejewski, Marian (born 18 August 1905)
- associate relationship with Schmidt, Hans-Thilo (born 13 May 1888)
Sy Scholfield provided birth certificate (acte n° 2673) from the online Alpes-Maritimes archives. Death data in margin.
- Vocation : Law : Spy/ Counter agent (French Secret Service)
- Vocation : Military : Other Military (Intelligence officer)
- Vocation : Politics : Public office (Mayor of Théoule-sur-Mer)
- Vocation : Writers : Textbook/ Non-fiction