+--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)