 06 Jan - 1801
 06 Jan - 1801( = Descendancy chart to this point,
 = Descendancy chart to this point,  = Expand,
 = Expand,  = Collapse)
 = Collapse)
 Claes Dirks  b. 16 Jan 1733 d. 25 Apr
  Claes Dirks  b. 16 Jan 1733 d. 25 Apr b. 15 Jan 1765 d. 10 Jun 1829
 b. 15 Jan 1765 d. 10 Jun 1829
                     Jan Folkerts  b. 20 Jan 1750 d. 4 Mar 1807
  Jan Folkerts  b. 20 Jan 1750 d. 4 Mar 1807 b. 10 Jun 1795 d. 04 May 1872
 b. 10 Jun 1795 d. 04 May 1872
                                     Jelle Jan Ben Schuurmann  b. 20 Dec 1792 d. 02 Jun 1853
  Jelle Jan Ben Schuurmann  b. 20 Dec 1792 d. 02 Jun 1853 b. 17 Oct 1821 d. 1901
[ =>]
 b. 17 Oct 1821 d. 1901
[ =>]