Siebe Postma - Pedigree | FamilyCentral
 8 Feb 1836 - 13 Feb 1836
 27 Dec 1792 -
 15 May 1793 -
 13 Apr 1752 - 11 Jan 1833
 19 Aug 1760 - 13 Apr 1798
 3 Apr 1708 - 12 Feb 1796
 Feb 1722 - 1803
  - 21 Jun 1782
 1725 - 30 Dec 1773
  - 22 Jan 1733
  - 24 Jun 1736
 13 Nov 1692 -
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