https://collections.arolsen-archives.org/de/search/person/6999946?s=124385&t=1774767&p=0
https://www.ushmm.org/online/hsv/source_view.php?SourceId=6141
https://www.dutchjewry.org/genealogy/duparc/5811.shtml
#jew
https://archief.amsterdam/indexen/deeds/985333e2-e7c6-56a3-e053-b784100ade19?person=985333e2-e7c7-56a3-e053-b784100ade19