About Janet Davies (actress)
Janet Kathleen Davies (14 September 1927 – 22 September 1986) was an English actress best known for her recurring role as Mrs. Pike in the long-running sitcom Dad's Army. Although mainly remembered for her role in Dad's Army, appearing in 30 episodes of the series, she also featured in many other television and film roles including Dixon of Dock Green, The Fall and Rise of Reginald Perrin, All Creatures Great and Small, Last of the Summer Wine, Z-Cars, The Citadel, Pride and Prejudice, Open All Hours, Are You Being Served?, and in the films The Ghost Goes Gear (1966), and Interlude (1968). She died on 22 September 1986, aged 59, from breast cancer which had metastasised to her lungs. After all, being in the office where the script first saw the light of day, she knew the requirements well." Davies went to see Croft in order to read for the part.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.