Benjamin Jacob Heertje was the son of Hartog Heertje and Saartje Hamel. He got married to Marianna de Lara on 11 June 1919. The couple had two children.
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In addition, a Jokos file (number 11429) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.