Betty Waas was the daughter of Leman Waas and Judith Zegerius.
Stadsarchief Amsterdam, archiefkaart Betty Waas
Betty Waas was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. She was 1 year old when she died.
J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 85