Lion Waas was a son of Levij Jacob Walvis and Doortje Sanders. He married in Amsterdam on 5 April 1916 to Judith Waas, daughter of Asser Leman Juda Waas and Rachel Schouten.
Website www.wiewaswie.nl .
In addition, a Jokos file (number 53805) 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 …