Israëls
The grandparents of David Israëls (1882) were Mozes Sanders Israëls and Rachel Levie de Vries. They had seven children, namely Rebekka (married to Calmer van der Kleij), Kaatje (died in 1849 at the age of 8 years), Judith (married to Salomon Isak Cohen), Eltje (Married to Salomon Gans), Sander (married to Hanna Gans), Levie (married to Grietje Gans) and again a Kaatje who was married to Jakob Benninga. Salomon, Hanna and Grietje Gans were children of David Jakob Gans and Jette Salomon van Hessen.
Of those seven children, only Kaatje Benninga-Israëls (1854) has been killed in the Shoah, together with her son Simon Benninga (1883). Her other siblings passed away already before the war
The next generation Israëls were Mozes (1877), Jette (1880), David (1882), Rachel (1885) and Sander (1888). Of these Mozes Israëls and his wife Rebekka Cozijn, Jette Israëls, her husband Philip Berlijn and her son Jacob, as also David Israëls and his wife Bela Rubens were killed in the Shoah. Only Esther Israëls and Sander Israëls survived the Holocaust.
Gans
Of the Gans family, Salomon (1840), Grietje (1845) and Hanna (1850) were married respectivly to Eltje Israëls, David Israëls and Sander Israëls. Of their offspring only David Gans and his wife Rosette Gans, Mozes Gans and his wife Henderia Gans and both their children Ellij Allegonda and Abraham Sally were killed in the Shoah. The other members of this Gans family passed away before and/or after the war.
Rubens
Bela Rubens’ parents, Salomon Rubens and Sarah Hirsch, had nine children, namly Mietje, Alexander, Samuel, Judith, Aaltje, Bela self, Henriette, Betje and Esther. Mietje died unmarried in Amsterdam at the age of 32 in 1917. Judith and Aaltje died in childhood; Alexander Rubens died in Venlo 1 January 1942; Henriette was killed in Sobibor, just as her sister Bela. Samuel passed away after the war in 1947 but his wife Sientje van Meer was killed in Sobibor. Betje, (called Betsy) survived the Shoah and passed away in Amsterdam in 1960. She was unmarried and worked as head nurse. Esther, the youngest from the family emigrated in 1949 to Palestine after her husband Alexander Bernard Abrahams had died in 1946. She passed away in Beth Joles in Haifa at the age of 105 years.
Sources among others: City Archvie of Amsterdam, Municipal Archive of Den Haag; website allegroningers.nl, wiewaswie.nl, hetstenenarchief.nl and the file cabinet of the Jewish Council and an additions of a visitors of the website.