+--Perry Mullis 
David D Mullis 
|              +--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)
|     +--William Thomas Gerkin  (2 Nov 1866-12 Oct 1945)
|     |  |  +--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)
|  +--Lester Gerkin  (13 Jun 1907-27 Sep 1998)
|  |  +--Katherine Bowden  (7 Sep 1868-7 Apr 1946)
+--Elsie K Gerkin 
   |  +--George Harp 
   +--Mary M Harp  (29 Oct 1912-10 Dec 2008)
      +--Elsie Todd