Benedictus Adelaar, born 12 October 1893 in Amsterdam, was a son of Emanuel Adelaar and Engeltje Kooker. He married 1 March 1917 to Rebecca Slap, a daughter of Asser Slap and Leentje Witteboon. The couple had three children, namely Engelina on 6 January 1918 and on 14 February 1922 the twinbrothers …
In addition, a Jokos file (number 50558) 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 …