Addition

Israel de Groot and his family

Israël de Groot was married to Grietje Hilversum. He was a merchant.
K. Ribbens, Zullen we nog terugkeren… . De jodenvervolging in Amersfoort tijdens de Tweede Wereldoorlog (Amersfoort 2002) 162-165

In addition, a Jokos file (number 60440) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.