Elisabeth Sara Enthoven was a daughter of Karel Enthoven and of Sara Joël Salomons. On 13 June 1899 she married in Amsterdam at age 35, the merchant Emanuel Leonard Schaap from Amersfoort, aged 43, a son of Levie Abraham Schaap and Grietje Kalker.
City Archive of Amsterdam, certificate of wedding 1750 of 13 June 1899 and website www.wiewaswie.nl and the Digitale Stamboom van Rotterdam, birth index…