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Male  Jan Jans Blaak
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1884--
1896--
1908--
1920--
1932--
1944--
1956--
1968--
1980--
1984--
Birth--9 December 1889 - Onstwedde, Stadskanaal, Groningen, Netherlands
Marriage--22 September 1917 - Onstwedde, Stadskanaal, Groningen, Netherlands (Age 27)
Death--22 June 1979 (Age 89)