Cornelia Jacobs was a daughter of Lion Jacobs and Mietje Ossendrijver. She married 26 November 1913 in Amsterdam Louis Godschalk, a son of Philippus Godschalk and Rika Wolff.
City Archive of Amsterdam, archive card of Lion Jacobs and website www.wiewaswie.nl .
In addition, a Jokos file (number 21152) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.