William St. John, 9th Baron Saint John of Bletso (1689-1720) (1689–1720) Parents Sir Andrew St. John, 2nd Bt. Jane Blois Children Siblings Rowland St. John, 10th Baron Saint John of Bletso Sir St. Andrew St. John, 4th Bt. Sir St. Oliver St. John, 3rd Bt. A son St. John John St John, 11th Baron St John of Bletso