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Male  Jacob de Boer

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Female  Jannetta Frederika Bleker

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Male  Michgiel Helenius de Boer

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Male  Jan de Boer

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Birth--24 July 1877 - Grongingen, Groningen, Groningen, Netherlands
Birth--23 December 1880 - Delfshaven, Rotterdam, Zuid-Holland, Netherlands
Birth--28 December 1908 - Gorningen, Groningen, Groningen, Netherlands
Birth--8 December 1909 - Groningen, Groningen, Groningen, Netherlands
Marriage--30 January 1908 - Groningen, Groningen, Groningen, Netherlands (Age 27)
Marriage--30 January 1908 - Groningen, Groningen, Groningen, Netherlands (Age 30)