#dutch
#jew
https://www.joodsmonument.nl/en/page/122296/ella-julie-koperberg
Father: Marcus Koperberg
permalink: Joods Biografisch Woordenboek
Mother: Suzanne Catz
Sister: Catherina (Kitty) Koperberg
https://www.joodsmonument.nl/en/page/122297/catharina-helmina-koperberg
Brother: Henri Koperberg (survived)