Sientje Swaab, a daughter of Joseph Swaab and Betje Berkhof, married 20 October 1920 in Amsterdam to Abraham Piller, a son of Jonas Piller and Betje Ketellapper.
Her siblings who also have been killed durig the Holocaust were Benedictus, Hartog, Mozes, Anna, Aaron, Samuel, and Heintje.
City Archive of Amsterdam, family registration card of Joseph Swaab and website www.wiewaswie.nl.