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Godefridus Koppers
- ☼ 04-05-1867 (Leiden [Zh])
- ✞ 24-01-1911 (Hillegom [Zh])
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Jacoba van Grieken
- ☼ 23-11-1863 (Hillegom [Zh])
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Anthonius Koppers
- ☼ 15-03-1892 (Hillegom [Zh])
- ✞ 05-02-1938 (Hillegom [Zh])
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Leonardus Koppers
- ☼ 21-11-1894 (Hillegom [Zh])
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Cornelis Koppers
- ☼ 20-02-1898 (Hillegom [Zh])
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