Isidor Rabinowitsch was the son of Schulim Rabinowicz and Bertha Pauker. He married in Amsterdam on 7 January 1942 to the widow of Joseph Boas, Roosje Haamerslag, a daughter of Juda Haamerslag and Leentje Nikkelsberg.
Roosje Haamerslag has survived the Holocaust as also his stepdaughter Kitty Boas, …
Isidor is op 07-01-1942 te Amsterdam getrouwd met Roosje Ha(a)merslag (geb. 17-03-1899 te Amsterdam). Roosje heeft de oorlog overleefd en is in 1972 naar Zuid-Afrika geëmigreerd.
In addition, a Jokos file (number 16501) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.