Wolf Vos was the eldest of the eight children of Hijman Vos and Lea van West. He was born in Amsterdam on 8 February 1879 and he was a diamond worker by trade. Wolf Vos married Henriëtte van Leeuwen in Amsterdam on 14 April 1904, who was born there on 20 September 1879 as a daughter of Lion Manus van Leeuwen and Rebecca Dressau. The couple had four children; three of them were born in Amsterdam, n…