Izak Reindorp was a son of Mozes Reindorp and Betje Blitz. This family had fourteen children, of whom three children, Flora, Rebecca and Izak Philip himself did not survive the Holocaust. His sister Saartje passed away in October 1940 but could be buried at the Jewish Cemetery of Muiderberg.
Izak Philip married in Amsterdam on 4 September 1895 to Klaartje Tonningen but she passed away already on 3…