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John Hessell Tiltman (1894–1982) by unknown photographer private collection

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Tiltman, John Hessell (1894–1982), cryptanalyst, was born at 70 Torrington Square, Bloomsbury, London, on 25 May 1894, the youngest in the family of one daughter and two sons of Alfred Hessell Tiltman, architect, and his wife, Sarah Ann Jane Kerr. Tiltman was educated at ...