????
           Alexander, John (b:1849-1850)(d:)
          |          ????
 Alexander, John (b:1883)(d:)
          |                    ????
          |          Nairn, Robert (b:1826-1827)(d:)
          |         |          ????
           Nairn, Jessie (b:1852-1853)(d:)
                    |          ????
                     Marshall, Isabella (b:1827-1828)(d:)
                               ????