Abraham van Westerborg was a son of Salomon van Westerborg (passed away 13 March 1932) and Antoinette Elizabeth Fles. He married 7 December 1926 in Rijswijk a non-Jewish woman, who has survived the war.
Abraham was born into a family of three children, of whom he and his brother Alex Marcel were killed in the Shoah. His eldest brother survived the Holocaust.
City Archive of Rotterdam, family regis…