Sara Knoop was a daughter of Hartog Knoop and Jansje Knoop-Hartog. She married on 3 June 1925 to Jozef Wolkenfeld, son of Izrael Wolkenfeld and Rijfka Kalter. The couple had one son: Hartog.
City Archive of Amsterdam, archive card of Jozef Wolkenfeld and website www.wiewaswie.nl.
One day Hartog Knoop didn't come home from school. On his way home he was arrested. Sara Knoop thought that she would see her son again in Eastern Europe. In preparation of their reunion she had prepared a bag filled with food for him to have.
A sister of Sara Knoop survived the war.
Addition of a visitor of the website