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Philip Philipsz. Hardonk
- ☼ 27-03-1808 ('s- Gravenhage [Zh])
- ✞ 21-04-1892 (Wassenaar [Zh])
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Helena van Spronsen
- ☼ 07-01-1813 (Wassenaar [Zh])
- ✞ 10-10-1890 (Wassenaar [Zh])
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Cornelis Hardonk
- ☼ 26-12-1838 (Wassenaar [Zh])
- ✞ 05-06-1914 (Wassenaar [Zh])
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Jan Jansz. de Greef
- ☼ 26-09-1804 (Wassenaar [Zh])
- ✞ 22-02-1869 (Wassenaar [Zh])
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Jacoba Gerritsdr. Vogelaar
- ☼ 26-06-1805 (Stompwijk [Zh])
- ✞ 02-05-1859 (Wassenaar [Zh])
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Gerarda de Greef
- ☼ 21-06-1842 (Wassenaar [Zh])
- ✞ 02-04-1916 (Wassenaar [Zh])
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Cornelis Hardonk
- ☼ 10-04-1883 (Wassenaar [Zh])
- ✞ 13-02-1962 ('s-Gravenhage [Zh])
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Cornelia de Klerk
- ☼ 21-10-1885 ('s- Gravenhage [Zh])
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Maria Hardonk
- ☼ 08-04-1925 (Wassenaar [Zh])