Jack (Jankiel) Klajman was born in 1931 in Warsaw, Poland, where he spent the entirety of World War II. After the war, he made his way to England and then to Canada in 1948 through the War Orphans Project, settling in London, Ontario. In 2013, he was featured in the documentary Little Heroes from the Warsaw Ghetto. With his wife, Sonia, he had four children. Jack Klajman passed away in 2019.