This person is commemorated on a memorial in Diepenheim. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
See for more information: W. Rietman, Dag stedeke van gisteren (Diepenheim 1980)
Joel Abraham Nijstad was the son of the merchant Abraham Nijstad and Lena Koopman. He was married to Frederika Nijstad-Mildenberg. The couple lived at 191 Stedeke in Diepenheim. On 19 April 1943 Joel Abraham Nijstad died at Vught concentration camp. Records concentration camp Vught, Sterbebuch 1943