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http://www.berkhofberkhoff.info/xweesdat.htm#BM88 #31-3 "No birthdate or date of chirstening is found. In the birth-certificate of her son Willem Louis, she is called "the redeemed of Louisa of P.L. Berkhoff "("de vrijgemaakte Louisa van P.L. Berkhoff"). Because Johanna Magdalena Buttini was born free, Louisa is not a child of Johanna (code: JJG). As an "illegal child", the surname of the father is according local custom in inverted spelling. In this case as FFohkreb, but Hoffberk is also known.
Married. From this relation one child: Willem Louis. Partner is GILL."
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