“If Herivel had not been recruited in January 1940, who would have thought of the Herivel tip?”

There’s a lovely piece of biographical detail in The Guardian‘s obituary of Belfast-born science historian, and former World War II codebreaker at Bletchley Park, John W. Herivel who died on 18 January 2011, aged 92.  From The Guardian obituary Born in Belfast, Herivel had a civil servant father and was educated at Methodist College, from where, in 1937, he won a scholarship to Sidney Sussex College, Cambridge. He had a strong sense of humour. Unable for security reasons to tell one potential …

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