https://infocenters.co.il/gfh/notebook_ext.asp?book=136589&lang=eng&site=gfh
https://vrijheid.scouting.nl/scouting-in-de-oorlog/database-bestanden/joodse-scouts/2695-joodse-scouts-hes-cohen/file
https://archief.amsterdam/indexen/deeds/98533409-acd5-56a3-e053-b784100ade19?person=98533409-acd6-56a3-e053-b784100ade19
Daughter: Hesseline Cohen See: