Bertha Roos was the daughter of Michael Philips Roos and Anna Wittgensteiner. She was married and had at least three children, among whom Rachelly and a child that survived the war.
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In July 1941, an obituary was placed in Het Joodsche Weekblad for B. de Pool-Roos.
Het Joodsche Weekblad, 18 July 1941, 11
These and any subsequent obituaries provide insufficient…