Timeline Chart
1903--
1904--
1908--
1912--
1916--
| Birth--17 February 1908 - Groningen, Grongingen, Groningen, Netherlands |
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| Birth--8 March 1910 - Groningen, Grongingen, Groningen, Netherlands |
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| Birth--1 December 1911 - Groningen, Grongingen, Groningen, Netherlands |
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