????
                     Nairn, Robert (b:1826-1827)(d:)
                    |          ????
           Nairn, Robert (b:1855)(d:)
          |         |          ????
          |          Marshall, Isabella (b:1827-1828)(d:)
          |                    ????
 Nairn, Isabella (b:1880-1881)(d:)
          |          ????
           (maybe)Yule, Elizabeth (b:1855-1856)(d:)
                     ????