Addition

David Hakker and his family

David Hakker and his wife Grietje Blok had two children. Their son Calman David Hakker was married to Jansje Wurms and lived at 123 Harstenhoekweg in The Hague. A second son, Eliazar, was married to Johanna van Kam and lived on the same address.
Addition of a visitor of the website