Philippa Constance Marian Ryder (1895-1982) (1895–1982) Parents Algernon Charles Dudley Ryder Constance Eugenia Smith Children Siblings Mary Constance Eugenia Ryder Dorothy Evelyn Frances Ryder Cecily Blanche Dorothy Ryder Joan Florence Helen Ryder Algernon Frederick Roland Dudley Ryder Hugh Granville Leveson Dudley Ryder