Zacharias Delden and Sophia Booleman married in 1926 in Amsterdam.
Stadsarchief Amsterdam, archiefkaart Sophia Booleman
In addition, a Jokos file (number 6663) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 2606/13112).
A Liro card exists for this person or family. The original cards are kept at the Nationaal Archief (National Archive) at The Hague.