In October 1941, an obituary was placed in Het Joodsche Weekblad for Frona de Haas-Cohen.
Het Joodsche Weekblad, 24 October 1941, 11
Frona Cohen was a daughter of Casper Jacob Cohen and Saartje de Grote. She married in 1919 in Aalten.
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The funeral records at the Jewish cemetery in Arnhem reveal that a memorial stone is placed for Frona Cohen.