Family:Johannus Postma and Grietje Koster (1)

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Johannus Postma
b. 1 Jan 1877
d. 23 May 1947
Parents: Sjoerd Koster and Barber Zwaagstra
Grietje Koster
b. 9 Jan 1885 Achtkarspelen, Friesland, Nederland
d. 22 Jul 1968
m.
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Marriage? civil
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