Joseph Philip David Mostyn (1894-1929) (1894–1929) Parents Edward Mostyn Mary Cecily Talbot Children David Mostyn Siblings Rt. Rev. Joseph John Reginald Henry Mostyn Mary Clare Mostyn Joseph Edward Hubert Mostyn Mary Anastasia Elizabeth Mostyn Mary Margaret Mostyn Joseph Cecil Mary Mostyn Mary Philomena Mostyn Mary Teresa Mostyn Partners Mary Catherine Moss