Kato Cohen was the daughter of Isak Cohen and Betje Salomon Cohen. She was married to Mozes van der Hoek. Heiman Isak van der Hoek was a son.
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In September 1941, an obituary was placed in Het Joodsche Weekblad for Kato v.d. Hoek-Cohen.
Het Joodsche Weekblad, 19 September 1941, 11