Lena IJzerkoper, born 4 May 1864 in Amsterdam, was a daughter of Samuel Isaac IJzerkoper and Sipora Jacob van Collem. She married Salomon Barend in Amsterdam on 25 November 1885, a son of David Barend and Vogeltje Abraham van West. The couple had nine children, namely David, Samuël, Mozes, Sippora, …
In addition, a Jokos file (number 12408) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.