Abraham Klisser was the son of Joseph Klisser and Beletje de Vries. Probably during the evacuation of van Zandvoort, due to the Atlantic Wall, he moved in with his mother in Amsterdam.
Addition of a visitor of the website
In addition, a Jokos file (number 9396) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.