Born in Tavistock, Ontario, Helen Caister Robinson was educated there and in Toronto, where she now lives.

An active member of the Canadian Authors Association, the Toronto Women's Press Club, the Writers' Union, Canscaip (the Canadian Society of Children's Authors, Illustrators, and Peformers), and the Big Sisters' Association. Her numerous articles include contributions to the Canadian Children's Annual, Canada, and Your Home.

Mrs. Robinson's special writing interest is making both Canadian history and natural history come alive for young adult readers, and Mistress Molly reflects that interest.