#dutch #jew
Simon (Curt) Kolthoff (1909 - 1961) - Genealogy (geni.com)
https://archief.amsterdam/indexen/deeds/98533403-5ad0-56a3-e053-b784100ade19?person=98533403-5ad1-56a3-e053-b784100ade19
Mother: Ernestina Kolthoff née Maier https://www.joodsmonument.nl/en/page/215906/ernestine-kolthoff-maier