Beletje Keyser-de Vries died in Camp Westerbork at age 83 on 7 December 1942. She was buried at the Jewish cemetery in Assen on 9 December 1942.
Jewish Historical Museum, Documents collection, inv.nr 3397; Death register of the Jewish community Assen
The funeral records at the Jewish cemetery in Assen reveal that Beletje de Vries was buried there.
In addition, a Jokos file (number 9234) on this…