Jacob David de Leeuw was a son of David Jacob de Leeuw and Rosette Baroche Hamburger. He had four other brothers: Joseph, Emanuel, Abraham and Alexander Louis.
Jacob David married on 10 July 1902 to Klaartje Pruijm, from whom he divorced on 2 January 1913. With her he had two sons: Benjamin and Da…
In addition, a Jokos file (number 35743) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.