Gabriel Wertheim was a son of 534917 and Grietje van Cleef. He married 21 Aperil 1898 in Amsterdam to Jacomina du Bruin, daugther of Jacob du Bruin and Vrouwtje Stokvis.
Gabriel's siblings were Heintje (who passed away in July 1930), 508228, Goedje (married to 478770 but passed away already in June …
In addition, a Jokos file (number 7077) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.