Isaäc Vos was born on 25 April 1868 in Amsterdam as a son of Abraham Joseph Vos and Alida de Vries. He married Mietje Visser on 30 December 1891 in Amsterdam. Mietje was born there on 29 January 1869 as a daughter of Barend Visser and Sientje Abraham Berkhof.
The Vos-couple had ten children in total, namely Alida in May 1892, Barend in November 1893, buth he died already one month later in early J…