Margery Vosper (1912 - 1981) born 25 Sep 1912 at Pancras, Middlesex, England, Margery was the sister of Frank Vosper. She was a theatrical and literary agent and head of the literary agency Margery Vosper Limited. She served as the literary agent for her brother. Margery Vosper was also a screenwriter and wrote episodes for "Alfred Hitchcock Presents". In 1939, she adapted the Agatha Christie short story Accident into the one act play Tea for Three. Margery was married to Thomas Robert McEwan and had two children. She died on 14 Oct 1981 at Camden, London.