+--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