+--John Lancaster Trueblood 
   +--Walter L Trueblood  (30 Sep 1884-Mar 1963)
   |  +--Cynthia Fields 
+--Opal E Trueblood  (11 Nov 1915-5 Feb 2007)
|  |        +--John Andrew Gerking  (27 Aug 1764-1815/1817)
|  |     +--John Andrew Gerking  (14 Apr 1798-18 Aug 1879)
|  |     |  |  +--William Rice 
|  |     |  +--Rachael Rice  (26 Feb 1774-ABT 1855)
|  |  +--Robert Gerkin  (14 Sep 1842-26 Feb 1911)
|  |  |  +--Mary (Polly) Phillips  (Sep 1801-5 Jan 1855)
|  +--Mahulda May Gerkin  (18 Feb 1885-12 Jun 1959)
|     |  +--Alfred G Talbott  (14 Mar 1814-19 Sep 1900)
|     +--Mary Eliza Talbott  (7 Jul 1844-17 May 1928)
|        +--Mary Jane Felknor  (1 May 1823-ABT 1867)
Living Trueblood 
+--Lenna H Reuter  (13 Sep 1915-15 Jul 2006)