Timeline Chart

Male  Roelof Aalders

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Female  Grietje Groenhof

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1905--
1908--
1912--
1916--
1920--
1924--
1928--
1932--
1936--
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1972--
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1977--
Birth--18 August 1910 - Stadskanaal, Onstwedde, Groningen, Netherlands
Birth--8 August 1911
Death--10 January 1972 (Age 61)