Peter Keis Postma - Pedigree | FamilyCentral
 1831 - 22 Nov 1919
 Abt 1782 - 5 Apr 1863
 16 Dec 1742 - 3 Sep 1822
 13 Apr 1752 - 12 Aug 1822
Elizabeth Klazes Sipma
 md. 16 May 1857
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