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Cornelia Walkers
- ☼ 06-05-1879 (Hillegom [Zh])
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Jacobus Koppert
- ☼ 12-03-1880 (Hazerswoude [Zh])
- ✞ 22-05-1948 (Hillegom [Zh])
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Johanna Koppert
- ☼ 25-02-1905 (Hillegom [Zh])
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Catharina Koppert
- ☼ 09-06-1907 (Hillegom [Zh])
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Johannes Koppert
- ☼ 19-11-1908 (Hillegom [Zh])
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Maria Koppert
- ☼ 06-09-1910 (Hillegom [Zh])
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Johanna Koppert
- ☼ 06-09-1910 (Hillegom [Zh])
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Jacobus Koppert
- ☼ 09-05-1912 (Hillegom [Zh])
- ✞ 20-03-1913 (Hillegom [Zh])
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Hendricus Koppert
- ☼ 30-12-1917 (Hillegom [Zh])
- ✞ 30-03-1918 (Hillegom [Zh])
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