Addition

Meijer Leefsma and his family

Meijer Leefsma and his spouse had a son David and a daughter Marianne.
Stadsarchief Amsterdam, archiefkaart David Leefsma

In addition, a Jokos file (number 9874) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.