Gerrit van der Sluis was a son of Joseph van der Sluis and Esther Spaanbroek. His siblings were Simon and Elisabeth, (who have survived the Holocaust), Klara, Ephraim, Jaantje, Sientje, Isak, Leentje, Benjamin and Marcus.
Gerrit married Berendje van Bever on 25 July 1923 in Amsterdam, a daughter of Simon van Bever and Schoontje Roeg.
City Archive of Amsterdam, archive card of Berendje van Bever a…