I am aware of a Bertha Walthausen who was married to my grand uncle Henrik Adolf Philipse (born Antwerp 11 Feb 1881). They were married in Liege on 19 Nov 1907 and they had a daughter Renee Helene (born Antwerp on 11 Sept 1908).
That is all of of the information, I know about Bertha. I was not aware that she died in Auschwitz. I am not sure what happened to Henrik or Renee.
Henrik was my grandmother's brother and I have quite a lot of family history on the Philipse.
Do contact me if you would like more information.
I would be interested to find out what you know about Renee.
Thank you
David
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