Simon Slager became religious education teacher on 24 January 1895 in the Jewish community of Zuidland. Before, he was a religious education teacher in Wisch (Gelderland). He left on 6 August 1896 to Alphen.
R. de Leeuw van Weenen-van der Hoek, Een kille in de mediene. Joods leven in Zuidland (Zuidland, 1994) 63