Betje de Vries-Vieijra was married to Hartog de Vries (b. 1884), son of Salomon Hartog de Vries en Leentje Spreekmeester on the 28th of March 1907 in Zaandam.
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This person lived alone or no information about family members is known or traceable.
In addition, a Jokos file (number 20528) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.