+--Harm Heien 
+--John Heien 
|  +--Mamie Pickenpaugh 
Marc Heien 
|           +--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)
|     +--John Walker Gerking  (21 Jul 1838-12 Feb 1915)
|     |  |  +--John Maple  (1768-ABT Aug 1820)
|     |  +--Sarah Maple  (1 Mar 1810-21 Jul 1893)
|     |     +--Sarah Haws-Hawes 
|  +--George Raymond Gerking  (13 Nov 1901-Aug 1967)
|  |  |  +--Chester Stillman Johnson  (24 Sep 1822-20 Jun 1879)
|  |  +--Ida May Johnson  (17 Aug 1860-14 Nov 1933)
|  |     +--Sarah Ann Olds  (24 Jan 1834-9 Apr 1901)
+--Ardis Mae Gerking  (21 Sep 1929-28 Dec 2008)
   +--Flossie A Nelson