Timeline Chart

Male  Sikko Koopman

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Female  Johanna Vorenkamp

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1863--
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Birth--17 March 1868 - Hoogezand, Hoogezand-Sappemeer, Groningen, Netherlands
Birth--3 December 1868 - Groningen, Groningen, Groningen, Netherlands
Marriage--25 June 1903 - Groningen, Groningen, Groningen, Netherlands (Age 35)
Marriage--25 June 1903 - Groningen, Groningen, Groningen, Netherlands (Age 34)
Death--12 December 1920 - Groningen, Groningen, Groningen, Netherlands (Age 52)
Death--29 January 1938 - Groningen, Groningen, Groningen, Netherlands (Age 69)