+--Gerrit Bongers 
         +--Gerrit Bongers  (ABT 1719-)
         |  +--Sibylla Wulting 
      +--Gerrit Bongers  (14 May 1741-14 Nov 1820)
      |  +--Nuland Willemsen 
   +--Willem Bongers  (1785-)
   |  |  +--Jacob Hendriksen  
   |  +--Elisabeth Jacobs  (5 Jan 1744-2 Aug 1820)
   |     +--Ariaan Teunissen 
+--Roelof Bongers  (9 Jan 1819-)
|  |  +--Roelof Roelofsen 
|  +--Maria Roelofsen  (1782-)
|     +--Christijna Coenders 
Maria Bongers  (1858-30 Jul 1912)
|  +--Jan Willem Jansen 
+--Gerritje Jansen  (28 May 1825-)
   +--Janna Jager