This person is commemorated on a memorial in Coevorden. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
In addition, a Jokos file (number 11937) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
By establishing the date of death of Alida van Coevorden-Bollegraf the official date is maintained as stated after the war by the Dutch Department of Justice.
On here card from the Jewish council it is stated that she was transported from Theresienstadt to Auschwitz on the 1st of October 1944.