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Leonardus Koster
- ☼ 16-09-1872 (Noordwijkerhout [Zh])
- ✞ 06-02-1954 (Haarlem [Nh])
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Maria Jansen
- ☼ 19-06-1878 (Haarlemmermeer [Nh])
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Cornelia Koster
- ☼ 14-07-1917 (Lisse [Zh])
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Adriana Koster
- ☼ 01-12-1918 (Lisse [Zh])
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