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Marriage 8 January 1931 -- Groningen, Gronngen, Groningen, NetherlandsJohannes Koopmans 
(I24876) Birth 29 February 1912 -- Groningen, Groningen, Groningen, Netherlands
Unknown children
Descendancy Chart:
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Marriage 8 January 1931 -- Groningen, Gronngen, Groningen, Netherlands
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| Unknown children | |||