 | Generation 1 - Abraham Werkman: Born - Cal 1914 - Oostwold, Midwolda, Groningen, Nederland |
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 | Generation 1 - Abraham Werkman & Christina Louis: Married - 15 Oct 1932 - Beerta, Groningen, Nederland |
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 | Generation 2 - Okko Werkman: Born - 21 Apr 1888 - Oostwold, Midwolda, Groningen, Nederland |
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 | Generation 2 - Okko Werkman & Antje Gremmer: Married - 11 Apr 1913 - Midwolda, Groningen, Nederland |
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 | Generation 2 - Antje Gremmer: Born - 04 Jan 1891 - Midwolda, Groningen, Nederland |
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 | Generation 2 - Antje Gremmer: Died - 25 Oct 1918 - Oostwold, Midwolda, Groningen, Nederland |
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 | Generation 3 - Abraham Werkman: Born - 10 Nov 1856 - Midwolda, Groningen, Nederland |
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 | Generation 3 - Abraham Werkman: Died - 05 Feb 1939 - Midwolda, Groningen, Nederland |
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 | Generation 3 - Abraham Werkman & Ettje Nap: Married - 24 Mar 1876 - Midwolda, Groningen, Nederland |
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 | Generation 3 - Ettje Nap: Born - 15 Nov 1854 - Midwolda, Groningen, Nederland |
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 | Generation 3 - Ettje Nap: Died - 03 Feb 1925 - Midwolda, Groningen, Nederland |
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 | Generation 3 - Hendrik Gremmer & Antje Spackman: Married - 02 Feb 1872 - Midwolda, Groningen, Nederland |
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 | Generation 4 - Geert Werkman: Born - 16 Mar 1826 - Eexta, Scheemda, Groningen, Nederland |
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 | Generation 4 - Geert Werkman: Died - 06 Dec 1916 - Midwolda, Groningen, Nederland |
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 | Generation 4 - Geert Werkman & Fenna van der Molen: Married - 15 May 1852 - Nieuwolda, Groningen, Nederland |
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 | Generation 4 - Fenna van der Molen: Born - 03 Mar 1830 - Nieuw-Scheemda, Scheemda, Groningen, Nederland |
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 | Generation 4 - Fenna van der Molen: Died - 25 Apr 1903 - Oostwold, Midwolda, Groningen, Nederland |
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 | Generation 4 - Steven Nap: Born - 04 Aug 1827 - Midwolda, Groningen, Nederland |
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 | Generation 4 - Steven Nap: Died - 13 Mar 1913 - Midwolda, Groningen, Nederland |
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 | Generation 4 - Steven Nap & Harmanna Spijker: Married - 12 Jan 1852 - Midwolda, Groningen, Nederland |
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