+--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 
+--James David Gerking 
|  |  +--Rev William Frederick Heuer 
|  +--Frieda C Heuer  (26 May 1908-20 Dec 2002)
|     +--Anna Difmeier 
Katherine Kay Gerking 
|  +--Elmer Folkerts 
+--Deanne Folkerts 
   +--Edna Janssen