Marianna Bouwman-Beffie was the daughter of Levie Beffie and Schoontje Koopal. Marianna Beffie married Nathan Levie (Bernard) Bouwman on 8 April 1899. He died in 1932.
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In addition, a Jokos file (number 1117) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.