Rozanne Colchester (née Medhurst, born 1923) worked in British intelligence in the 1940s.
Career
In 1941 she joined Bletchley Park as a decoder. Her father (Charles Medhurst), himself involved in intelligence, recruited her. She spoke Italian which led to her joining the RAF section. Following a successful interview she was immediately taken on and completed two days training delivered by Joe Hooper.
After the war, she worked for the Secret Intelligence Service in an undisclosed role. She served in Cairo and Istanbul where she helped investigate the double agent Kim Philby.
References
Rozanne Colchester Wikipedia(Text) CC BY-SA