+--William MACKENZIE  (-1916)
Hugh Henry MACKENZIE  (1892-1978)
|           +--Q BROOKS  (-UNKNOWN)
|        +--Thomas BROOKS  (-UNKNOWN)
|        |  +-- UNKNOWN  (-UNKNOWN)
|     +--Thomas BROOKS  (1803-UNKNOWN)
|     |  +--Qq HANNAH  (-UNKNOWN)
|  +--Henry BROOKS  (1828-1895)
|  |  +--Louisa AVERY  (1804-UNKNOWN)
+--Celia Anne Morgan BROOKS  (1861-1949)
   +--Emma LUKE  (1833-1914)