Samuel Jacob (Jim) Kleerekoper worked in the summer of 1943 in the so-called Transport Command (loading and unloading of goods wagons) in ‘Zwangsarbeitslager’’ (forced labour camp) Lublin. He was a professional singer and despite his weakened state he would sing in the camp for his fellow prisoners and – under pressure - for the Germans. People knew him under the nickname ‘Tosca’ . Because he had …