Abraham Salomon Koster was firtst married to Rosalia de Wolf. The couple had four children: Levie (also known as John), Maurits Abraham and two children who survived the war. After Rosalie de Wolf died in 1919, Abraham Salomon Koster got remarried to Keetje Cohen de Solla. The couple had one more son, Alexander.
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Person is in the National Database of Victims of Persecution