This person is commemorated on a memorial in Hengelo. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
Alexander Cohen and Sara Jacobs had a son Frits. Addition of a visitor of the website
In addition, a Jokos file (number 6088) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.