Elias Weenen was a son of Goedman Weenen and Leentje Löwenstein. He married in Amsterdam on 28 June 1928 to Catharina Stokvis, daugther of Joseph Stokvis and Rebecca Barend.
City Archive of Amsterdam, archive card of Goedman Weenen and website www.wiewaswie.nl.
In addition, a Jokos file (number 1503) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.