+--William Norris 
Joseph edwin ralph Norris 
|        +--George Washington Thomas 
|     +--Edwin Gerald Thomas  (9 Sep 1899-20 Nov 1985)
|     |  +--Ellen  
|  +--Gerald Wallace Thomas 
|  |  |     +--Richard Robison 
|  |  |  +--Luther Monterey Robison  (4 Apr 1872-Mar 1953)
|  |  |  |  +--Martha Swain 
|  |  +--Florence Vivian Robison  (22 Oct 1903-16 Nov 1983)
|  |     |        +--John Andrew Gerking  (27 Aug 1764-1815/1817)
|  |     |     +--Jonathan Rice Gerking  (17 Dec 1812-12 Jul 1882)
|  |     |     |  |  +--William Rice 
|  |     |     |  +--Rachael Rice  (26 Feb 1774-ABT 1855)
|  |     |  +--Samuel Isaiah Gerking  (24 Nov 1844-22 Apr 1929)
|  |     |  |  |  +--Solomon Myers  (22 Jan 1786-5 May 1861)
|  |     |  |  +--Nancy Ann Myers  (11 Apr 1818-9 Jun 1910)
|  |     |  |     |  +--David Stewart 
|  |     |  |     +--Mary (Polly) Stewart  (8 Nov 1786-12 Jun 1865)
|  |     |  |        +--Henrietta George 
|  |     +--Emily Gertrude Gerking  (27 Dec 1875-14 Jan 1908)
|  |        |  +--James Smith  (4 Aug 1828-17 Nov 1914)
|  |        +--Mary Alice Smith  (12 Feb 1851/1857-22 Nov 1877)
|  |           +--Rebecca Jane Mathew  (2 Nov 1835-5 Mar 1875)
+--Jerri Lynne Thomas 
   +--Dorothy Marie Burgardt