Printed postcard titled, Kto ratuje jedno życie, to jakby ratował cały świat with black and white picture of a young woman. Information Provided by Michael D. Bulmash: Irena Sendler (Sendlerova), also known as Jolanta, was a Polish Roman Catholic nurse/social worker who worked in the Polish Underground during World War II. She was the head of the children\u27s section of Zegota in German-occupied Warsaw. She was able, with the help of other members of Zegota, to save the lives of 2,500 children by smuggling them out of the Warsaw Ghetto, as well as securing false identity papers and housing for them. She wrote their birth names and their new names on strips of paper hidden in a jar. Arrested and tortured by the Gestapo in 1943, she refuse...