+--John Calvin York  (Dec 1844-)
      +--John Calvin York  (Apr 1876-)
      |  +--Martha   (ABT 1843-)
   +--Hubert Ernest York  (15 Oct 1901-25 Apr 1995)
   |  |        +--John Andrew Gerking  (27 Aug 1764-1815/1817)
   |  |     +--David Peter Gerking  (25 Feb 1799/1800-7 Apr 1860)
   |  |     |  |  +--William Rice 
   |  |     |  +--Rachael Rice  (26 Feb 1774-ABT 1855)
   |  |  +--David Samuel Gerking  (14 Sep 1851-13 feb or 16 Mar 1922)
   |  |  |  |  +--John Maple  (1768-ABT Aug 1820)
   |  |  |  +--Sarah Maple  (1 Mar 1810-21 Jul 1893)
   |  |  |     +--Sarah Haws-Hawes 
   |  +--Ada Florence Gerking  (26 Jan 1877/1876-)
   |     +--Marcia Eleanor Blair  (30 Jun 1858-28 Feb 1914)
+--Kenneth Stewart York 
|  |  +--Thomas B Doyle 
|  +--Marie D Doyle  (12 Feb 1904-May 1995)
|     +--Jean Elizabeth Stewart 
Julie Adell York 
+--Maxine Brockett