Timeline Chart
1884--
1888--
1892--
1896--
1900--
1904--
1908--
1912--
1916--
1920--
| Birth--22 September 1889 - Niekerk, Ulrum, Groningen, Netherlands |
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| Birth--22 October 1893 - Houwerzijl, Ulrum, Groningen, Netherlands |
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| Marriage--2 December 1915 - Leens, Ulrum, Groningen, Netherlands (Age 22) |
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| Marriage--2 December 1915 - Leens, Ulrum, Groningen, Netherlands (Age 26) |
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