A letter remains that Sophie Adèle Jacobs received from H.C. Wichers-Heath (Hilversum) while she was at Westerbork.
Jewish Historical Museum, Documents collection, inv.nr 426
This person lived alone or no information about family members is known or traceable.
In addition, a Jokos file (number 61076) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.