| Generation 1 - Harm Reinder Houwen: Born - Tuesday 12 November 1912 - Woudbloem, Slochteren, Groningen, Nederland |
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| Generation 1 - Harm Reinder Houwen: Died - Monday 22 February 1915 - Scharmer, Slochteren, Groningen, Nederland |
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| Generation 2 - Hendrik Albertus Houwen: Born - Friday 26 April 1878 - Sappemeer, Groningen, Nederland |
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| Generation 2 - Hendrik Albertus Houwen: Died - Monday 28 March 1955 - Woudbloem, Slochteren, Groningen, Nederland |
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| Generation 2 - Hendrik Albertus Houwen & Jantina Lockhorn: Married - Tuesday 17 September 1901 - Hoogezand, Groningen, Nederland |
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| Generation 2 - Jantina Lockhorn: Born - Sunday 10 September 1876 - Veendam, Groningen, Nederland |
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| Generation 2 - Jantina Lockhorn: Died - Monday 11 November 1918 - Woudbloem, Slochteren, Groningen, Nederland |
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| Generation 3 - Derk Houwen: Born - Monday 06 January 1845 - Kolham, Slochteren, Groningen, Nederland |
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| Generation 3 - Derk Houwen: Died - Wednesday 06 October 1909 - Foxhol, Hoogezand, Groningen, Nederland |
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| Generation 3 - Derk Houwen & Hantje Vechter: Married - Saturday 25 May 1872 - Muntendam, Groningen, Nederland |
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| Generation 3 - Hantje Vechter: Born - Saturday 16 January 1847 - Groningen, Groningen, Nederland |
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| Generation 3 - Hantje Vechter: Died - Sunday 19 May 1940 - Kolham, Slochteren, Groningen, Nederland |
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| Generation 3 - Bernhardus Hermannus Lockhorn: Born - 1828 - Emden, Ostfriesland, Niedersachsen, Deutschland |
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| Generation 3 - Bernhardus Hermannus Lockhorn: Died - Monday 05 September 1898 - Hoogezand, Groningen, Nederland |
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| Generation 3 - Bernhardus Hermannus Lockhorn & Jantje Bos: Married - Saturday 13 October 1860 - Veendam, Groningen, Nederland |
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| Generation 3 - Jantje Bos: Born - Thursday 12 March 1835 - Beerta, Groningen, Nederland |
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| Generation 3 - Jantje Bos: Died - Thursday 21 June 1906 - Groningen, Groningen, Nederland |
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| Generation 4 - Harm Houwen: Born - Monday 07 June 1813 - Beerta, Groningen, Nederland |
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| Generation 4 - Harm Houwen & Wupke Derks Mooi: Married - Friday 11 November 1842 - Hoogezand, Groningen, Nederland |
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| Generation 4 - Wupke Derks Mooi: Born - Monday 05 October 1818 - Nieuwolda, Groningen, Nederland |
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| Generation 4 - Friderik Hindriks Bos: Born - 1793 - Nieuwe Pekela, Groningen, Nederland |
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| Generation 4 - Friderik Hindriks Bos: Baptised - Wednesday 27 November 1793 - Nieuwe Pekela, Groningen, Nederland |
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| Generation 4 - Friderik Hindriks Bos: Died - Monday 21 February 1870 - Beerta, Groningen, Nederland |
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| Generation 4 - Friderik Hindriks Bos & Trientje Harms Haan: Married - Saturday 24 February 1827 - Beerta, Groningen, Nederland |
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| Generation 4 - Trientje Harms Haan: Born - Tuesday 26 October 1790 - Onstwedde, Groningen, Nederland |
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| Generation 4 - Trientje Harms Haan: Baptised - Sunday 31 October 1790 - Onstwedde, Groningen, Nederland |
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| Generation 4 - Trientje Harms Haan: Died - Sunday 12 April 1857 - Beerta, Groningen, Nederland |
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