Dudley Claud Douglas Ryder (1901-1986) (1901–1986) Parents Cyril John Ryder Lady Isobel Frances Ulrica Iris Hamilton Children Jacqueline Iris Ryder Benjamin Guy Dudley Ryder Gabrielle Nancy Ryder Jennifer Cherry Ryder Richard D. Ryder James Calcraft Dudley Ryder Siblings Patience Evelyn Ryder Iris Katharine Ryder Partners Nancy Edith Baker Vera Mary Cook