Joan Miller was born in 1918. After the time described in this story, she lived for a short while with Maxwell Knight, but soon realised she was being used as a cover for his homosexuality, which, despite being widespread in London society, was illegal at that time. She married Tom Kinlock Jones in 1943. She continued working in MI5 but transferred to the Political Intelligence Department. She died in 1984. Despite MI5’s efforts to stop it, her daughter published Miller’s book about her experiences, entitled One Girl’s War: Personal Exploits in MI5’s Most Secret Station, in Dublin in 1986. Some critics have suggested she embellished her story.