Yitzkhak Bader was born in Kanczuga, Poland, 1908 to Yaakov and Elka. Prior to WWII he lived in Kanczuga, Poland. During the war he was in Russia (USSR), Russia (USSR). Yitzkhak survived the Shoah.
Jews deported to or imprisoned in camps, ghettos or forced labor frameworks, who were in hiding, in clandestinity or resistance formations, or suffered relentless persecution under antisemitic legislation in territories controlled by the Nazis or their allies, and were alive by the end of 1945 are considered Shoah survivors.