Isaac Aron Mok, the eldest son of Joseph Mok and Leentje Kaanis. His parents were married in October 1906 in Amsterdam and he was born there on 26 March 1907. Isaac Aron became a tailor by profession. In March 1926 he arrived from Amsterdam in Rotterdam, where he came living in with the family of Leon Wessels and Mietje Slier. On 29 July 1931 he married the daughter of the house, Keetje Wessels and on 26 December of that year, their daughter Leentje was born. Meantime, the Mok-Wessels family lived in with Isaac Aron’s mother Leentje Kaanis in Helmersstraat 8b in Rotterdam.
Later, Isaac Aron Mok and his family moved another seven times in Rotterdam, till they found a place of residence at the address Drievriendenstraat 38b on 1 August 1940. Afterwards, they still moved again one time to Osseweistraat 19a, from where they have been carried off to Westerbork already on 31 July 1942.
Isaac Aron Mok, his wife Keetje Wessel and his daughter Leentje were deported to Auschwitz on 3 August 1942. On arrival there Isaac Aron was selected to work as a forced laborer. It is not known on what date he lost his life. For this reason, after the war, the Dutch authorities commissioned the municipal council of Rotterdam to issue a death certificate in which his date and place of death was established as on 30 September 1942 in Auschwitz. However, Isaac Aron's wife Keetje and his daughter Leentje were immediately killed in Auschwitz on arrival on 5 August 1942.
Sources among others: City Archive of Rotterdam, family registration cards of Isaac Aron Mok and Leentje Mok-Kaanis and the file cabinet of the Jewish Council, registration cards of Isaac Aron Mok, Keetje Mok-Wessels and Leentje Mok and an addition of a visitor of the website.