Halliwell’s filmgoer’s comp., 1993 (Hickson, Joan; actress; b. 1906)
Washington Post, Oct. 21, 1998: obit. (Joan Hickson, 92, died Oct. 17, 1998, Colchester, England; acting career began 1927; graduate RADA, over 100 films; best known as Miss Marple)
Internet Movie Database WWW site, December 18, 2015: (Joan Hickson, actress ; b. Joan Bogle Hickson, August 5, 1906 in Kingsthorpe, Northampton, Northamptonshire, England, UK ; d. October 17, 1998 (age 92) in Colchester, Essex, England, UK)