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Johannes van Dam
- ☼ 28-03-1859 (Leiden [ZH])
- ✞ 05-04-1920 (Schoten [Nh])
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Sophia Sommeling
- ☼ 22-08-1861 (Zoeterwoude [Zh])
- ✞ 08-05-1916 (Haarlem [Nh])
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Sophia van Dam
- ☼ 06-10-1896 (Leiden [Zh])
- ✞ 06-12-1896 (Leiden [Zh])