+-- Parker 
John Gerking Parker 
|              +--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)
|        +--Peter Maple Gerking  (15 Aug 1828-16 Mar 1908)
|        |  |  +--John Maple  (1768-ABT Aug 1820)
|        |  +--Sarah Maple  (1 Mar 1810-21 Jul 1893)
|        |     +--Sarah Haws-Hawes 
|     +--David Bascom Gerking  (25 Mar 1854-17 Sep 1940)
|     |  |        +--Stephen Gose 
|     |  |     +--Christopher Gose 
|     |  |     |  +--Catherine Spracher 
|     |  |  +--William M Gose  (26 Jun 1798-5 Jun 1865)
|     |  |  |  +--Mary Elizabeth Litz 
|     |  +--Sarah Ann Gose  (16 Mar 1828-12 Dec 1896)
|     |     |  +--Martin Jesse Knifong  (1774-1841)
|     |     +--Martha M Knifong  (13 Nov 1801-16 Feb 1887)
|     |        +--Eva Wolf  (1778-)
|  +--Chester Henry Gerking  (28 Aug 1875-15 Jul 1951)
|  |  |  +--Henry Alvord Allen 
|  |  +--Mary Emma (Mamie) Allen  (3 May 1857-12 Dec 1904)
|  |     +--Melvina Mary   (ABT 1829-)
+--Maebelle Gerking  (19 Dec 1905-ABT 1980)
   |  +--John Darden 
   +--Emma Jean Darden  (18 Jan 1880-31 Oct 1942)
      +--Mary Johnson