Mary Johanna Antoinette Dulcie Oppenheim (1868-1945) (1868–1945) Parents Charles Augustus Oppenheim Isabelle Frith Children Frances Gertrude Arbuthnot Dorothea Helen Mary Arbuthnot Cynthia Isabelle Theresa Arbuthnot Siblings Lawrie Charles Frith Oppenheim Mary Frances Isabelle Oppenheim Partners Gerald Arbuthnot