Anna Heilman remembers helping her sister, Ester Wajcblum, smuggle gunpowder to aid in the Sonderkommando uprising at Auschwitz II-Birkenau. Ester Wajcblum was hanged publicly in the camp on January 1, 1945. See more clips on Auschwitz

Dennis Urstein was a Kanada Kommando in Auschwitz who collected inmates' belongings they were forced to leave behind. He reflects on witnessing the arrivals of new inmates to Auschwitz II-Birkenau.See more clips on Auschwitz

Renée Firestone remembers arriving at Auschwitz II-Birkenau with her sister, whom she tried desperately to hang onto so they would not be separated.See more clips on Auschwitz

Emmanuel talks about the last time he saw his pregnant cousin alive.Born: January 10, 1975City of Birth: Rutonde (Rwamagana, Rwanda)In hiding: Kicukiro (Kigali, Rwanda)Liberated by: Rwandan Patriotic Front (RPF)Liberation location: Nyamirambo (Kigali, Rwanda)