+--Vinson Parker 
+--Jack Edward Parker 
|  +--Cora Lee Moody 
Krystal Kathleen 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)
|        +--Joseph Henry Gerking  (28 Oct 1841-10 Mar 1927)
|        |  |  +--John Maple  (1768-ABT Aug 1820)
|        |  +--Sarah Maple  (1 Mar 1810-21 Jul 1893)
|        |     +--Sarah Haws-Hawes 
|     +--David Preston Gerking  (20 Mar 1874-21 Dec 1959)
|     |  +--Frances M Howell  (26 Apr 1852-10 Nov 1885)
|  +--James Preston Gerking  (25 Nov 1913-27 Mar 1988)
|  |  |  +--James K Hunt 
|  |  +--Mary Alice Hunt  (10 Mar 1882-15 Apr 1975)
|  |     +--Maria Kirk 
+--Kathleen Ann Gerking 
   |  +--Rev William Frederick Heuer 
   +--Frieda C Heuer  (26 May 1908-20 Dec 2002)
      +--Anna Difmeier