Ephraim 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, Gerrit, Jaantje, Sientje, Isak, Leentje, Benjamin en Marcus.
Ephraim married Cornelia Bonewit in Amsterdam on 17 July 1929, a daughter of Le…
In addition, a Jokos file (number 8984) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.