Timeline Chart

Male  Harm Willem de Groot

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Female  Jenkelina Kornelia Vos

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Male  Jan Jakob de Groot

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1886--
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Birth--25 July 1891 - Pieterburen, De Marne, Groningen, Netherlands
Birth--21 August 1891 - Hoogkerk, Groningen, Groningen, Netherlands
Birth--1918 - Anjum, Dongeraeel, Friesland, Netherlands
Marriage--19 July 1917 - Ulrum, Ulrum, Groningen, Netherlands (Age 25)
Marriage--19 July 1917 - Ulrum, Ulrum, Groningen, Netherlands (Age 25)
Death--27 September 1941 - Groningen, Groningen, Groningen, Netherlands (Age 23)
Death--24 September 1956 (Age 65)
Death--13 April 1959 (Age 67)