Judith Bouwman was a daughter of 479103 and Sara Hendrika van Leeuwen. She married Emanuel Poons in 1930 in Bussum. Stadsarchief Amsterdam, archiefkaart Judith Bouwman
In addition, a Jokos file (number 55644) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.