Max Dalsheim was a son of Heijman Dalsheim and Leah Heilbrunn. He had two other brothers: Daniel and Oscar and a sister Amalia. Max was not married.
Death certificate 1950 from the website Alle Groningers and the website WiewasWie.
In addition, a Jokos file (number 37785) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.