+--Charles Allen Sprague  (1856-1911)
+--Charles Arthur Sprague  (12 Nov 1887-13 Mar 1969)
|  +--Alice Caroline Glasgow  (1857-1895)
Martha M Sprague 
|  +--John Byron Chamberlain  (1855-8 Aug 1905)
+--Blanche Chamberlain  (16 Jul 1881-14 Mar 1976)
   |        +--John Andrew Gerking  (27 Aug 1764-1815/1817)
   |     +--David Peter Gerking  (25 Feb 1799/1800-7 Apr 1860)
   |     |  |  +--William Rice 
   |     |  +--Rachael Rice  (26 Feb 1774-ABT 1855)
   |  +--Peter Maple Gerking  (15 Aug 1828-16 Mar 1908)
   |  |  |  +--John Maple  (1768-ABT Aug 1820)
   |  |  +--Sarah Maple  (1 Mar 1810-21 Jul 1893)
   |  |     +--Sarah Haws-Hawes 
   +--Martha Jane Gerking  (4 Jun 1858-7 Nov 1937)
      |        +--Stephen Gose 
      |     +--Christopher Gose 
      |     |  +--Catherine Spracher 
      |  +--William M Gose  (26 Jun 1798-5 Jun 1865)
      |  |  +--Mary Elizabeth Litz 
      +--Sarah Ann Gose  (16 Mar 1828-12 Dec 1896)
         |  +--Martin Jesse Knifong  (1774-1841)
         +--Martha M Knifong  (13 Nov 1801-16 Feb 1887)
            +--Eva Wolf  (1778-)