+--Harlen E Heideman 
+--Robert Lee Heideman  (29 Jul 1960-2 Jan 1985)
|  +--June Keim 
Kellen Robert Heideman 
|                 +--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 
+--Karen Dorothea Gerking 
   |  +--Elmer Folkerts 
   +--Deanne Folkerts 
      +--Edna Janssen