Sippora Barend, usually named Sientje, the fourth child of Salomon Barend and Lena IJzerkoper, was born on 6 September 1895 in Amsterdam. She married her cousin Joseph IJzerkoper, shoemaker by profession and a son of Samson IJzerkoper and Grietje Carels. He was known as Jopie. The couple had two daughters, namely in 1923 Margaretha and in 1926 Lena. Both the parants and children were killed during…