 Lord Harrowby married Mabel Danvers Smith, daughter of William Henry Smith and Emily Danvers, Viscountess Hambleden, in 1887.As a result of her marriage, Mabel Ryder was styled as Countess of Harrowby effective 11 December 1900.Mabel, Countess of Harrowby, was named Dame Commander of the Order of the British Empire (DBE) in 1919.