Joseph Emanuel Kalker studied medicine in Leiden, where he sat for his medical finals on 16 March 1928. He lived and practised medicine at 148 Laan van Nieuw Oost-Indië in The Hague and had another practice on the Oranjeplein. He was a physician at the medical sports inspection desk. Joseph Emanuel Kalker was married. He and his wife had two children. His wife and children survived the war.
J.H. Coppenhagen, Anafiem Gedoe‘iem. Overleden joodse artsen uit Nederland 1940-1945 (Rotterdam 2000) 107
We have been unable to determine whether one or more members of this family survived the war. While their names do not appear on the lists of survivors, we have not been able to trace them in In Memoriam either. They are therefore labeled as 'surviving' and their names are not listed.
In addition, a Jokos file (number 1077) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.