Lena Blok was the daughter of Manuel Blok and Mietje Goudsmit. Lena Blok grew up in a family with ten children. Both her parents died before the war. Addition of a visitor of the website
In addition, a Jokos file (number 17040) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.