Isaäc Drukker and Sara Duque married in 1901 in Haarlem. They had four daughters: Lea, Elisabeth, Judith and Rosa. Isaäc and Sara were father and mother in the Portugees-Israëlitisch Jongensweehsuis (Jewish Portuguese orphanage) on the same address. Stadsarchief Amsterdam, archiefkaart Isaäc Drukker
In addition, a Jokos file (number 55884) on this household is at the Amsterdam Municipal Archive. …