Grietje Bonnewit was married to Isidor Abrahams. Besides the here mentioned children they had at least two more daughters: Rosette and Rosalie.
Haags Gemeentearchief, death certificates Rosette and Rosalie Abrahams (C 20, 1949 and C 9, 1950)
Grietje Bonnewit also had a son Ezra Daniel with Isidor Abrahams.
Addition of a visitor of the website
In addition, a Jokos file (number 10660) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 54 / 17883).