John Ryder, 5th Earl of Harrowby British politician (1864-1956) (1864–1956) Parents Susan Dent Henry Ryder, 4th Earl of Harrowby Children Dudley Ryder, 6th Earl of Harrowby Alice Margaret Ryder Lady Frances Ryder Mary Alice Ryder Siblings Edward Ryder Robert Ryder Lady Angela Ryder Lady Constance Ryder Lady Margaret Ryder Lady Adelaide Ryder Archibald Ryder Partners Mabel Danvers Smith