+--Zachary Jerkin 
   +--Zachariah Gerkin  (ABT 1695-ABT Apr 1754)
   |  +--Elizabeth  
+--Joshua Gerking  (-BEF 1772)
|  |  +--John Harrison 
|  +--Hannah Harrison 
|     +--Mary  
Hannah Gerking 
+--Ann Blount  (-27 Apr 1795)