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, who married 15 July 1942 to Joseph Büschel.
City Archive of Amsterdam, archive card of Isidor Rabinowitsch, Roosje Haamerslag and Joseph Büschel.
Biography