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Marriage 16 September 1909 -- Groningen, Groningen, Groningen, NetherlandsWillem de Koning 
(I03283) Birth 11 February 1877 -- Bolsward, Bolsward, Friesland, Netherlands
Death 19 May 1950 (Age 73)
Number of Children: 1 
Harmina Jacoba de Koning 
(I12353) Birth 18 May 1915
Death 7 January 2002 (Age 86)
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