Person:Sijtze Koonstra (1)

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Sijtze Aants Koonstra
 
 
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  1. Aant Koonstra1887 - 1950
  2. Sjoukje Koonstra1888 - 1978
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Name Sijtze Aants Koonstra
Gender Male
Marriage to Jeltje Jans Bosma


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