| Generation 1 - John Diederick Oudsteyn: Born - 24 Oct 1919 - Cook County, Illinois |
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| Generation 1 - John Diederick Oudsteyn & Harriett Louise Gantz: Married - 14 Jan 1939 - Cook County, Illinois |
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| Generation 2 - Gustav Karl Lodewijk Oudsteijn: Born - 9 Feb 1894 - Rotterdam, Netherlands |
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| Generation 2 - Gustav Karl Lodewijk Oudsteijn: Died - Jan 1984 - Sullivan, Moultrie County, Illinois |
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| Generation 2 - Angeline "Angie" DeWitt: Born - Nov 1899 - Illinois |
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| Generation 3 - Johan Diederik Oudsteyn: Born - 2 Jul 1855 - Amsterdam, Holland |
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| Generation 3 - Johan Diederik Oudsteyn: Buried - 15 Oct 1951 - Acacia Park Cemetery, Chicago, Cook County, Illinois |
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| Generation 3 - Johan Diederik Oudsteyn & Maria Elisabeth ten Bosch: Married - 6 May 1879 - Amsterdam, Holland |
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| Generation 3 - Maria Elisabeth ten Bosch: Born - 11 Sep 1853 - Poederoijen, Holland |
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| Generation 3 - Maria Elisabeth ten Bosch: Buried - 6 May 1938 - Acacia Park Cemetery, Chicago, Cook County, Illinois |
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| Generation 3 - Evert DeWitt: Born - Nov 1874 - Michigan |
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| Generation 4 - Johan Diederik Oudsteijn: Born - Abt 1824 - Amsterdam, Holland |
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| Generation 4 - Johan Diederik Oudsteijn & Wilhelmina Margaretha Vlugt: Married - 25 Jul 1849 - Amsterdam, Holland |
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| Generation 4 - Wilhelmina Margaretha Vlugt: Born - Abt 1824 - Haarlem, Holland |
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| Generation 4 - Frederik Eduard Adolf ten Bosch: Born - 1824/1825 - Amsterdam, Holland |
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| Generation 4 - Frederik Eduard Adolf ten Bosch: Died - 9 Nov 1866 - Nieuwleusen, Holland |
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| Generation 4 - Frederik Eduard Adolf ten Bosch & Wilhelmina Detlijn: Married - 1 Nov 1848 - Rotterdam, Netherlands |
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| Generation 4 - Wilhelmina Detlijn: Born - 16 Sep 1825 - Rotterdam, Netherlands |
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