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Pieter Jacobsz. van Nieuwkoop
- ☼ 01-05-1796 (Woubrugge [Zh])
- ✞ 28-07-1849 (Alkemade [Zh])
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Antje Dirksdr. Koelewijn
- ☼ 05-10-1802 (De Kaag [Zh])
- ✞ 26-07-1849 (Alkemade [Zh])
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Jacob van Nieuwkoop
- ☼ 06-10-1827 (Alkemade [Zh])
- ✞ 20-10-1906 (Alkemade [Zh])
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Aaltje Spaargaren
- ☼ 11-03-1831 (Aalsmeer [Nh])
- ✞ 20-04-1917 (Alkemade [Zh])
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Johannes van Nieuwkoop
- ☼ 04-09-1857 (Alkemade [Zh])
- ✞ 20-02-1894 (Sassenheim [Zh])
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Johanna Lugtigheid
- ☼ 15-11-1860 (Broek [Zh])
- ✞ 13-07-1944 (Sassenheim [Zh])
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Aaltje van Nieuwkoop
- ☼ 21-06-1889 (Sassenheim [Zh])