Joseph Reindorp was a son of Hartog Reindorp (deceased 15 Mei 1931 in Apeldoorn) and Esther Croese (burial in Diemen 30 April 1925). He had four other brothers and one sister: Annaatje, Asser Abraham, Mozes, Izaak Philip and Asser, who died only 3 years old in September 1896.
Joseph Reindorp married in Amsterdam on 24 May 1923 to Debora van Sister, daughter of Simon van Sister and Cornelia de Vrie…