+--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)