1791 Mary Margaret Morison , b. 1792, Barbados. George Morison , b. 4 April 1793, West Indies. Married: Helena Moore, 7 May 1794.   Children: Edward , b. 16 Nov 1795, d. 27 Feb 1837. Viscount Kingsborough. An accomplished scholar who produced Kingsborough's Antiquities of Mexico . Robert Henry , b.