Grietje Piersma - Pedigree | FamilyCentral
 17 Mar 1848 - 30 Nov 1934
 21 Apr 1819 - 18 Feb 1901
 1823 - 4 Jul 1907
  - 7 May 1824
 6 Sep 1780 - 5 May 1861
Family Group
Sytze de Vries
 md. 10 May 1884
  Children