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Marriage 19 July 1917 -- Ulrum, Ulrum, Groningen, NetherlandsHarm Willem de Groot 
(I16952) Birth 21 August 1891 -- Hoogkerk, Groningen, Groningen, Netherlands
Death 24 September 1956 (Age 65)
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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