+--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 
         +--Ernest Dean Gerking  (18 Jul 1881-11 Nov 1945)
         |  |     +--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  
      +--Ardis Dean Gerking  (7 Nov 1907-30 Jan 1976)
      |  |     +--John W Tharp 
      |  |  +--Francis Tharp  (30 Jan 1850-17 Jun 1925)
      |  |  |  +--Perline Daniels 
      |  +--Fannie Elora Tharp  (1 Aug 1886-8 Jan 1972)
      |     +--Glaphina Garletts  (1860-)
   +--Phillip Dean Gerking 
   |  |  +--Herbert Underhill 
   |  +--Ahda A (Marie) Underhill  (26 Jan 1909-22 May 1987)
   |     +--Phyllis Barton Norris 
+--Alan Blaine Gerking 
|  |  +--James Ellis Collins  (22 Apr 1896-18 Feb 1986)
|  +--Nancy Carol Collins  (12 Aug 1934-28 Mar 2010)
|     +--Alice Lela Meredith 
Jennifer Colleen Gerking 
+--Laura Nalbandian