| Generation 1 - Geertje Geerdina Donker: Born - Sunday 27 December 1891 - Kalkwijk, Hoogezand, Groningen, Nederland |
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| Generation 2 - Geert Donker: Born - Saturday 13 October 1855 - Zuidlaren, Drenthe, Nederland |
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| Generation 2 - Geert Donker: Died - Friday 21 August 1936 - Hoogezand, Groningen, Nederland |
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| Generation 2 - Geert Donker & Hinderkien Mulder: Married - Friday 27 May 1887 - Hoogezand, Groningen, Nederland |
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| Generation 2 - Hinderkien Mulder: Born - Thursday 09 January 1862 - Kropswolde, Hoogezand, Groningen, Nederland |
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| Generation 2 - Hinderkien Mulder: Died - Monday 16 March 1931 - Hoogezand, Groningen, Nederland |
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| Generation 3 - Geert Hindriks Donker: Born - Saturday 13 April 1822 - Zuidbroek, Groningen, Nederland |
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| Generation 3 - Geert Hindriks Donker: Died - Tuesday 20 January 1885 - Zuidlaarderveen, Zuidlaren, Drenthe, Nederland |
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| Generation 3 - Geert Hindriks Donker & Geertje Middelburg: Married - Wednesday 03 February 1847 - Zuidlaren, Drenthe, Nederland |
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| Generation 3 - Geertje Middelburg: Born - Thursday 13 November 1823 - Zuidlaren, Drenthe, Nederland |
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| Generation 3 - Hindrik Hindriks Mulder: Born - Sunday 25 June 1826 - Hoogezand, Groningen, Nederland |
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| Generation 3 - Hindrik Hindriks Mulder & Anna Menninga: Married - Saturday 14 May 1853 - Hoogezand, Groningen, Nederland |
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| Generation 3 - Anna Menninga: Born - Sunday 24 December 1826 - Vries, Drenthe, Nederland |
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