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Marriage 19 July 1917 -- Ulrum, Ulrum, Groningen, NetherlandsJenkelina Kornelia Vos 
(I16951) Birth 25 July 1891 -- Pieterburen, De Marne, Groningen, Netherlands
Death 13 April 1959 (Age 67)
Number of Children: 1 
Jan Jakob de Groot 
(I21069) Birth 1918 -- Anjum, Dongeraeel, Friesland, Netherlands
Death 27 September 1941 (Age 23) -- Groningen, Groningen, Groningen, Netherlands
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