I am making a documentary entitled We Know And We Don't Know about Oskar and Zygmunt Strawczynski and their descendants. Oskar and Zygmunt were two of fewer than 100 Jews who survived the Treblinka death camp, where 900,000 to 1,000,000 Jews were killed between July 1942 and August 1943--a survival rate of 0.01%. To support the film, please go to, https://gofund.me/b00349814.