+--J. W. Black 
Frederick William Black  (11 APR 1877-27 SEP 1878)
|  +--Archibald McKenzie 
+--Mary Bell McKenzie  (15 FEB 1849-)
   |           +--John Morison  (1628-16 FEB 1736)
   |        +--John Morison  (1678-14 JUN 1776)
   |        |  +--Wife One 
   |     +--John Morison  (20 SEP 1725-27 DEC 1816)
   |     |  +--Margaret Wallace  (1687-18 APR 1769)
   |  +--Joseph A. Morison  (13 JUL 1769-OCT 1846)
   |  |  +--Martha Anderson  (1732-31 MAR 1811)
   +--Sarah Morison  (1 JUN 1817-6 OCT 1856)
      +--Isabella Fletcher  (1778-OCT 1821)