Abraham Isaac was a son of Eliazer Isaac and Esther Blok. He married in Amsterdam on 20 October 1897 to Regina Son, daughter of Simon Wolf Son and Lea Nunes Vaz. The couple had four children: Alice (born in London), Simon, Esther and Willem. Per 2 February 1905 the name of his wife was removed from…
In addition, Jokos files (numbers 33579, 35003) on this person or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.