Henry St John, 13th Baron St John of Bletso Engllish baron (1758–1805) Parents Susanne Louise Simond John St John, 12th Baron St John of Bletso Children Barbara St. John Augusta St. John Margaret Letitia Matilda St. John A son St. John Emma St. John Siblings Elizabeth Barbara St. John St Andrew St John, 14th Baron St John of Bletso Mathilda St. John John Peter St. John Anne St. John George St. John Partners Emma Maria Elizabeth Whitbread