Jan Boersma - Pedigree | FamilyCentral
 3 Jul 1843 - 28 May 1857
 27 Jan 1813 - 26 Apr 1883
 19 Jul 1806 - 27 Feb 1867
 1777 - 30 Oct 1847
 1777 - 30 Oct 1847
  - Bef 1847
  - Bef 1847
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  - Bef 1847