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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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Abram Hardonk
- ☼ 22-12-1918 (Wassenaar [Zh])
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Johannes Hardonk
- ☼ 03-02-1920 (Wassenaar [Zh])
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Cornelis Hardonk
- ☼ 06-03-1921 (Wassenaar [Zh])
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Gerardus Hardonk
- ☼ 01-12-1922 (Wassenaar [Zh])
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Maria Hardonk
- ☼ 08-04-1925 (Wassenaar [Zh])
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