Aäron Neuburger was a widower. His wife, Betje Pool (b. 1875), had died in 1938. She is buried in Muiderberg. Aäron and Betje had four children, three of whom survived the war. Their son Mozes Neuburger was killed, along with his wife and two young daughters. As a young man, Aäron is said to have studied at the Nederlands Israelitisch Seminarium, but family life and the rising socialist movement took the place of his religious enthusiasm. He became a diamond cleaver. His family observed religious traditions and kept a kosher kitchen. They ate pork only once, accidentally, while on holiday at a guest house. Aaron took long walks in Amsterdam with one of his grandsons. He knew the city well and made charcoal drawings of city scenes, which he raffled off. At the Berlagebrug (a bridge), Aäron and his grandson watched together as the German troops entered the city.
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In addition, a Jokos file (number 60200) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.