Henriette and Alida de Groot, both born in Antwerp, were deported from Mechelen to Auschwitz together with their mother Emmy Sigrid Alida Winther with Convoy 11, which departed 26 September and arrived in Auschwitz 28 September 1942. This convoy included 1742 persons, of whom were 523 children. Upon arrival 1398 deportees were immediately killed. However, the date of death for Henriette as well fo…