Mozes Waas was a son of Salomon Waas and Eva Wolder. He married 17 August 1921 to Mietje Pachter, daughter of Levie Pachter and Esther Sarlui.
City Archive of Amsterdam, archive card of Levie Pachter and website www.wiewaswie.nl .
In addition, a Jokos file (number 15852) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.