Daughter of Nicholas Simons and his wife Marion Henrietta (Betteridge) Simons, Marion had one sister and five brothers, and was the fourth child of the family. Born at Crystal Brook, her childhood years were apparently spent there and at Port Germein and Port Pirie.
She became a freelance radio script writer and journalist. Between 1939-1949 she wrote a number of radio plays for the ABC's school broadcasts; some educational, such as the series of "Stories behind Famous Pictures", and some adaptations of such classics such as Scott's Waverley, Victor Hugo's Les Miserables and stories by O. Henry. For these she used her name "Marion Simons". Marion also wrote short stories and articles under the pseudonym "Stella Hope" and radio talks as "Lady Tulliver". She once used the name "Maggie Tulliver". She wrote a pageant, "Celebrated Countrywomen; a Food for Britain Pageant", but details of its production, if any, are not recorded. Her play "Casablanca" won the 1932 Repertory Prize. She did not marry, and lived at 13 Claremont St, Mile End, Adelaide, at the home of her brother Les. G. Simons.