Ann Katharine Mitchell, cryptanalyst and psychologist
Ann Katharine Mitchell a British cryptanalyst and psychologist who worked on decrypting messages encoded in the German Enigma cypher at Bletchley Park during the Second World War died on 11 May 2020, aged 97, in Edinburgh. She tested positive for COVID-19 shortly before her death.
After the war she became a marriage guidance counsellor, then studied for a Master of Philosophy at the University of Edinburgh. She worked at the university's Department of Social Administration and wrote several academic books about the psychological effects of divorce on children including Someone to Turn to: Experiences of Help Before Divorce (1981) and Children in the Middle: Living Through Divorce (1985).
Ann Williamson was born in Oxford on 19 November 1922, to Herbert Stansfield Williamson...
