Hartog Zwaaf was a son of Abraham Zwaaf and Grietje Pront.He married 1 April 1936 in Amsterdam to Esther Vischjager, daughter of Jacob Vischjager and Judic Schelvis.
City Archive of Amsterdam, archive cards of Jacobus Vischjager and Hartog Zwaaf.
In addition, a Jokos file (number 52954) 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 …