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  1. Born12 January 1891
    Died6 June 1977 (aged 86)
    Full nameSir John Cecil Masterman
    Two Oxford Mysteries

    An Oxford Tragedy
    In 1933, he wrote a murder mystery novel entitled An Oxford Tragedy, set in the fictional Oxford college of St. Thomas's. It was writte… See more

    Wikipedia
    The Twenty Committee

    When World War II broke out, Masterman was drafted into the Intelligence Corps. After investigating and producing a report into the evacuation of Dunkirk, Masterman was appoin… See more

    Wikipedia
    Revelations

    Information about the double-cross system remained secret after the war. In 1958 Masterman … See more

    Wikipedia
  1. JC Masterman: From the MCC to MI5 | Playing Pasts

  2. Sir John Masterman, 86, Director of World War II System of Double ...

  3. Double-Cross System - Wikipedia

  4. John Masterman Profile - Cricket Player England - ESPNcricinfo

  5. Life story: John Cecil Masterman | Lives of the First World War

  6. Masterman, John Cecil - TracesOfWar.com

  7. John Cecil Masterman | Military Wiki | Fandom

  8. J.C. Masterman (Author of The Double-Cross System) - Goodreads

  9. The Double-Cross System: The Incredible True Story of H…