https://www.joodsmonument.nl/nl/page/190217/hilda-hertog-schraber
Hilda Schraber (1908 - 1944) - Genealogy (geni.com)
https://archief.amsterdam/indexen/deeds/98533402-9761-56a3-e053-b784100ade19?person=98533402-9762-56a3-e053-b784100ade19