Jacob Veldman was a son of Abraham Veldman and Annetje Kloots, who both passed away before the war. Vrouwtje Blog was a halfsister of his mother. He married on 25 March 1942 in Amsterdam.
Addition of a visitor of the website
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, Jacob Veldman had a butcher shop, address: Weesperstraat 93 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives