De ouders van Marianne waren Louis Gosschalk (1868-1934) en Sara Snatager (1866-1943). Haar vader was mede-eigenaar geweest van de exportslachterij Gosschalk in de Noordenbergstraat in Deventer.
In addition, Jokos files (numbers 2651, 5677) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for :
- securities or bonds. (W-claim, number C150/724)
- valuables surrendered to the Lippmann-Rosenthal looting bank (L-…