Early life and career
He attended St Paul’s School, and then Magdalene College from 1927. He wrote 12 papers between 1931 and 1938 on algebraic geometry, and was associated with Professor H. F. Baker. He had a research fellowship in 1933, then a fellowship in 1936. Postwar he was made a tutor in 1946, and a senior tutor in 1964.
During World War II Babbage was the chief cryptanalyst in Hut 6 at Bletchley Park, which decrypted German Army and Air Force Enigma messages. Babbage and Hugh Alexander were leaders in the Machine Room and in all matters related to the techniques of breaking Enigma keys. Babbage was a Major in the Army Intelligence Corps.
Gordon Welchman who was also in Hut 6 wrote that before the war they were members of a group of geometers known as Professor Baker’s "Tea Party", who met once a week to discuss the areas of research in which we were all interested. And that I remember his skill on the billiard table, particularly with strokes played behind his back; before the war he had repeatedly beaten me at squash and tennis.
- Randell, Brian (1980). "The Colossus" (PDF). p. 8. Archived from the original (pdf) on 17 February 2012. Retrieved 7 August 2012.
- Obituary in The Times, London of 24 June 1991 p16
- Secret Days: Code-breaking in Bletchley Park by Asa Briggs (2011, Frontline Books, London) p40 ISBN 978-1-84832-615-6
- The Hut Six Story: Brealing the Enigma Codes by Gordon Welchman (1982, Allen Lane, London) pp 35, 85, 126 ISBN 0 7139 1294 4
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