Helena Weimann was a daughter of Leopold Weimann and Katerina Kellerman. She married 20 March 1940 to Abraham pachter, widower of Julie Waterman. City Archive of Amsterdam, archive card of Helena Weimann.
In addition, a Jokos file (number 9973) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.