Duifje van der Sluis was a daughter of Enoch van der Sluis and Hester van Wittene. She was married in Rotterdam on 30 March 1910 to Levie van Dam, a son of Herman van Dam and Alida Cohen. Duifje and Levie had eleven children together. Four of them have died at a very young age. According to data from his family registration card, her son Herman presumably have fallen in action in Spain in the 1930’s. Three of her children, namely Hester, Dina and Heiman might have survived the war but three children, Maurits Sibilla and Hartog were killed in the Shoah.
The marriage of Duifje and Levie van Dam did not last and on 4 January 1936 the marriage ended in a divorce. Her ex-husband remarried end of 1936 but passed in Rotterdam in 1941 and he was interred there. Duifje van der Sluis, her daughter Sibilla and son Hartog moved from Rotterdam to Den Haag, where they lived at De Gheijnstraat 94 a.
Duifje's daughter Sibilla, a factory worker, was brouhgt in Camp Westerbork on 20 Ausust 1942 and already one day later, on 21 Augustus deported to Auschwitz, whers she eventually lost her life on 30 September 1942.
Duifje self and her son Hartog werd sent to Camp Westerbork on 8 December 1942. Four days later, on 12 December, were both deported to Auschwitz where they have been killed immediately upon arrival there on 15 December 1942.
City archive of Rotterdam, family registration card of Levie van Dam; the file cabinet of the Jewish Council, registration cards of Duifje van der Sluis, Sibilla van Dam and Hartog van Dam; Civil Registry of Den Haag, certificate of death 1951 C823 dated 8 March 1951 for Duifje van der Sluis - certificate of death 1951 C2326 for Hartog van Dam and certificate of death 1951 C531 for Sibilla van Dam.