Beatrice Mary Frederica Ryder (1852-1909) (1852–1909) Parents Frederick Dudley Ryder Marian Charlotte Emily Cokayne Children Beatrice Alice Delmé Radcliffe Arthur Francis A. Delmé Radcliffe Ralph Delmé-Radcliffe Evelyn Penelope Delmé Radcliffe Siblings Marian Frances Georgiana Ryder John Edward Dudley Ryder Lionel George Dudley Ryder unknown son Ryder Frederica Constance Dorothy Ryder Hugh Cuthbert Dudley Ryder Algernon Charles Dudley Ryder Helena Augusta Cockayne Ryder Stewart Leveson Dudley Ryder Partners Arthur Delmé Radcliffe