Heiman Salomon van Gelderen was a son of Gabriel van Gelderen and Carolina de Leeuw. He got married to Ganna Waterman, who still lived with her parents. The couple had one child that survived the war.
Addition of a visitor of the website
In addition, a Jokos file (number 52055) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.