Emma (Emmy) van Hoorn wrote a note on 9 March 1943, on behalf of her mother, from Westerbork to two befriended families with the request to send them belongings which were left behind.
See: J. Wijnberg-Stroz en M. van Lunteren-Spanjaard, Blijvers en voorbijgangers. Joden in Delft 1850-1960 (Kampen 1998) 188
Biography