About
Kathleen Maria Margaret Sissmore, MBE (1898 – 1982), was known as Jane Sissmore and then Jane Archer after her marriage in 1939. In 1929 she became the first female officer in Britain's Security Service, MI5, and was still their only woman officer at the time of her dismissal for insubordination in 1940. She had been responsible for investigations into Soviet intelligence and subversion. She then joined the Secret Intelligence Service (MI6) but when Kim Philby – later to be exposed as a double agent – became her boss he reduced her investigative work because he feared she might uncover his treachery. In his memoirs he wrote of her "After Guy Liddell, Jane was perhaps the ablest professional intelligence officer ever employed by MI5". Following management changes in MI5 she returned there in 1945 or 1946.
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| Born |
11 March 1898 Bengal
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| Died |
1 September 1982 (aged 84)
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| Zodiac | Pisces |
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