William Cuninghame, 13th Earl of Glencairn (died 1775) (1720–1775) Parents William Cunningham, 12th Earl of Glencairn Lady Henrietta Stewart Children William Cuninghame, Lord Kilmaur Alexander Cuninghame unknown daughter Cuninghame John Cunningham, 15th Earl of Glencairn Lady Henrietta Cuninghame James Cunningham, 14th Earl of Glencairn Siblings James Cuninghame James Cuninghame Margaret Cuninghame Henrietta Cuninghame Alexander Cuninghame Malcolm Fleming Cuninghame unknown son Cuninghame Charles Cuninghame John Cuninghame Partners Elizabeth Maguire