Betje Viskoper was a daughter of Benjamin Viskoper and Anna van Bever. She married 21 may 1924 in Amsterdam to Leendert Engelsman, a son of Mozes Engelsman and Rebecca de la Penha.
Betje was born in a family with seven children. One sister survived the war, however not her husband Sally Swaab. Her other siblings were Raphael, Sara, Marianne, Rebecca and Michel. They all have been killed during the Holocaust.
City Archive of Amsterdam, family registration card of Benjamin Viskoper, archive card of Betje Viskoper and website www.wiewaswie.nl.
Betje Engelsman-Viskoper joined the Hollandia-Kattenburg textile factory in Amsterdam on 26 February 1940. On Wednesday, 11 November 1942, around 4:30 PM, Willy Lages conducted the Sicherheitspolizei raid on the Hollandia factories. All exits were blocked, and the Jewish staff members were taken away that evening. Photographs of all workers taken away that evening, as well as those deported previously, appear in the 'Boek der tranen' [Book of tears].
Jewish Historical Museum, Documents collection, inv.nr B1376, 'Boek der tranen' [Book of tears]