| Generation 1 - Harm Schaafstal: Born - Wednesday 07 December 1887 - Kalkwijk, Hoogezand, Groningen, Nederland |
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| Generation 2 - Johan Hendrik Schaafstal: Born - Wednesday 17 March 1852 - Faan, Oldekerk, Groningen, Nederland |
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| Generation 2 - Johan Hendrik Schaafstal: Died - Saturday 10 July 1909 - Groningen, Groningen, Nederland |
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| Generation 2 - Johan Hendrik Schaafstal & Grietje Bieze: Married - Saturday 22 May 1880 - Hoogezand, Groningen, Nederland |
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| Generation 2 - Grietje Bieze: Born - Friday 24 May 1850 - Sappemeer, Groningen, Nederland |
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| Generation 3 - Jan Hendrik Schaafstal: Born - Approximately 1818 - Faan, Oldekerk, Groningen, Nederland |
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| Generation 3 - Jan Hendrik Schaafstal: Died - Wednesday 07 April 1869 - Kalkwijk, Hoogezand, Groningen, Nederland |
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| Generation 3 - Jan Hendrik Schaafstal & Trijntje Kooijstra: Married - Wednesday 21 May 1851 - Oldekerk, Groningen, Nederland |
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| Generation 3 - Harm Fransens Bieze: Born - Sunday 29 January 1797 - Sappemeer, Groningen, Nederland |
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| Generation 3 - Harm Fransens Bieze & Anna Katharina Kuhwer: Married - Thursday 02 March 1837 - Sappemeer, Groningen, Nederland |
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| Generation 3 - Anna Katharina Kuhwer: Born - Estimated in 1807 - Tönning, Schleswig-Holstein, Deutschland |
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| Generation 4 - Johan Hendrik Schaafstal: Born - 1782 - Deutschland |
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| Generation 4 - Johan Hendrik Schaafstal: Baptised - Monday 18 March 1782 - Deutschland |
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| Generation 4 - Johan Hendrik Schaafstal & Fennechien Jans Bennema: Married - Saturday 20 June 1812 - Zuidbroek, Groningen, Nederland |
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| Generation 4 - Fennechien Jans Bennema: Born - 1780 - Zuidbroek, Groningen, Nederland |
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| Generation 4 - Fennechien Jans Bennema: Baptised - Monday 06 November 1780 - Zuidbroek, Groningen, Nederland |
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| Generation 4 - Frans Harms Bieze: Born - 1766 - Sappemeer, Groningen, Nederland |
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| Generation 4 - Frans Harms Bieze: Baptised - Sunday 14 September 1766 - Sappemeer, Groningen, Nederland |
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| Generation 4 - Frans Harms Bieze: Died - Tuesday 02 February 1841 - Sappemeer, Groningen, Nederland |
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| Generation 4 - Frans Harms Bieze & Fokel Jans Meijer: Married - Thursday 08 September 1796 - Sappemeer, Groningen, Nederland |
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| Generation 4 - Fokel Jans Meijer: Born - 1768 - Sappemeer, Groningen, Nederland |
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| Generation 4 - Fokel Jans Meijer: Baptised - Sunday 16 October 1768 - Sappemeer, Groningen, Nederland |
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| Generation 4 - Fokel Jans Meijer: Died - Tuesday 03 January 1854 - Sappemeer, Groningen, Nederland |
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