Maria Christina Maurer(20 Nov 1813 - 13 Jan 1849)Jannetje Weltevree( - +)
m. 7 Jun 1876, Dordrecht, prov.ZH., Netherlands
b. 2 Aug 1845, Leeuwarden, prov.Frl., Netherlands
d. 29 Jan 1918, Bergen op Zoom, prov.NBr., Netherlands
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b. 7 Sep 1851, Ommen, prov.Ov., Netherlands
d. 6 Feb 1931, Dordrecht, prov.ZH., Netherlands
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Children
Johan Christiaan Kalverboer(23 Apr 1876 - 31 Jan 1961)