Mary Turville-Petre (1904–1995) Parents Margaret Cave Oswald Turville-Petre Children Christopher Turville-Constable-Maxwell Jennifer Turville-Constable-Maxwell Mary Turville-Constable-Maxwell Robert Turville-Constable-Maxwell Marcia Turville-Constable-Maxwell Siblings Gabriel Turville-Petre Francis Turville-Petre Marion Turville-Petre Partners David Turville-Constable-Maxwell