Robert William St. John (1791-1844) (1791–1844) Parents Frederick St John Lady Mary Kerr Children Henry Thomas St. John Barbara Louisa St. John Charlotte Elizabeth St. John Emilie Diana St. John Louisa Caroline St. John Mark Kerr St. John Frederick Arthur St. John Siblings Maria Arabella St. John Henry George St. John Charles William George St John Elizabeth St. John Welbore William Oliver St. John George William St. John George Frederick Berkeley St. John Louisa Diana St. John Partners Elizabeth Maria Barker