Rozette van Hoorn was a daughter of Emanuel van Hoorn and Hendel Meijer. She married Meijer Samuel Poons in 1908 in 't Zandt.
Addition of a visitor of the website
In addition, a Jokos file (number 9326) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.