Timeline Chart

Male  Johannes Jacobus de Koningh
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Female  Henderika Sijkina de Koningh
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1901--
1904--
1908--
1912--
1914--
Birth--9 August 1906 - Stadskanaal, Wildervank, Groningen, Netherlands
Birth--28 May 1909 - Stadskanaal, Wildervank, Groningen, Netherlands