Mary Grainger was the wife of Lawrence Grainger and the mother of Edward Grainger. She was good friends with Lady Louisa Pollard, and attended meetings led by Emmeline Pankhurst, as a supporter of women's suffrage. (PROSE: Forgotten)
During childbirth on 24 June 1906, Mary was attacked by the Bruce Master. Mary was saved by her maid Violet, who hit the Master with a rolling pin. (PROSE: Prologue)