| Generation 1 - Freerk Boels: Born - Wednesday 11 April 1906 - Onstwedde, Groningen, Nederland |
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| Generation 1 - Freerk Boels & Janna Kruiter: Married - Monday 21 July 1930 - Onstwedde, Groningen, Nederland |
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| Generation 2 - Hendrik Boels: Born - Wednesday 19 July 1876 - Onstwedde, Groningen, Nederland |
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| Generation 2 - Hendrik Boels: Died - Monday 27 March 1916 - Groningen, Groningen, Nederland |
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| Generation 2 - Hendrik Boels & Hendrikje Kuipers: Married - Saturday 30 September 1905 - Onstwedde, Groningen, Nederland |
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| Generation 2 - Hendrikje Kuipers: Born - Friday 12 November 1880 - Groningen, Groningen, Nederland |
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| Generation 2 - Hendrikje Kuipers: Died - Thursday 27 February 1969 - Onstwedde, Groningen, Nederland |
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| Generation 3 - Freerk Boels: Born - Wednesday 26 November 1845 - Onstwedde, Groningen, Nederland |
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| Generation 3 - Freerk Boels: Died - Thursday 11 December 1919 - Onstwedde, Groningen, Nederland |
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| Generation 3 - Freerk Boels & Albertje Heis: Married - Monday 03 May 1875 - Onstwedde, Groningen, Nederland |
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| Generation 3 - Albertje Heis: Born - Tuesday 24 February 1852 - Onstwedde, Groningen, Nederland |
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| Generation 3 - Albertje Heis: Died - Thursday 01 February 1912 - Vosseberg, Onstwedde, Groningen, Nederland |
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| Generation 4 - Hindrik Freerks Boels: Born - Saturday 19 September 1818 - Nieuwe Pekela, Groningen, Nederland |
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| Generation 4 - Hindrik Freerks Boels: Died - Thursday 01 July 1909 - Veendam, Groningen, Nederland |
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| Generation 4 - Hindrik Freerks Boels & Gepke Jans Schreuder: Married - Friday 11 April 1845 - Onstwedde, Groningen, Nederland |
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| Generation 4 - Gepke Jans Schreuder: Born - Friday 02 November 1821 - Onstwedde, Groningen, Nederland |
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| Generation 4 - Gepke Jans Schreuder: Died - Monday 15 January 1872 - Oude Pekela, Groningen, Nederland |
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| Generation 4 - Detmer Wubbes Heis: Born - Wednesday 22 April 1812 - Onstwedde, Groningen, Nederland |
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| Generation 4 - Detmer Wubbes Heis & Elsien Luitjens Jarkes: Married - Monday 06 April 1846 - Onstwedde, Groningen, Nederland |
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| Generation 4 - Elsien Luitjens Jarkes: Born - Friday 03 August 1827 - Onstwedde, Groningen, Nederland |
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