Saartje Springer, a daughter of Samson Springer and Betje Levij, married Isaac Koopman in Amsterdam on 4 December 1913, a son of Emanuel Koopman and Schoontje Levij.
website www.wiewaswie.nl .
In addition, Jokos files (numbers 35173, 8098) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.