Betti de Vries was a daughter of Levie Jonas de Vries and Fredrike Isaak Roseboom. She was born in Leer East-Frisia (germany). On 22 April 1895 she was married to Hartog Braaf. The couple had two children.
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This person is commemorated on a memorial in Hoogeveen. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4…