+--Albert Bruce Crawford 
+--Lee Bruce Crawford  (12 Jan 1906-11 Jan 1989)
|  +--Anna Frazier 
Effa Anna Crawford 
|           +--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)
|     +--Jonathan Napoleon Bonaparte Gerking  (28 Jan 1846-8 May 1928)
|     |  |  +--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 
|  +--George Rice Gerking  (22 Feb 1876-20 Jun 1951)
|  |  |     +--Gideon Pottorff 
|  |  |  +--George Rutter Pottorff  (27 Jun 1825-8 Oct 1914)
|  |  |  |  +--Susannah Allhands 
|  |  +--Lucy Pottorff  (9 Oct 1848-3 Mar 1946)
|  |     |  +-- Russell 
|  |     +--Hannah Russell  (19 Sep 1828-10 Jun 1919)
|  |        +--Elizabeth  
+--Blanche Clara Gerking  (1904-)
   |  +--Roscoe A Bostwick 
   +--Florence Effie Bostwick  (15 May 1879-31 May 1968)
      +--Caroline Reeder