Karel Martin Klein, carpenter by profession, was a son of bookkeeper Jacob Hessel Klein and Roosje Vos (deceased). He worked as assistant-gardener in the Apeldoornse Bos, where he began working on 4 May 1942. Eleonora Poppers, a domestic servant, was a daughter of the merchant Tobias Poppers and of Frederika Halberstad.
Karel Martin Klein and Eleonora Poppers married in Camp Westerbork on 18 Feb…