Chaim Yonisz was born in Radzymin, Poland, 1905 to Barukh and Elka. He was a merchant and married to Golda nee Krinenberg. Prior to WWII he lived in Ostrov Mazovyetska, Poland. During the war he was in Slonim, Poland. Chaim was murdered in the Shoah. Place of death: Slonim, Poland.
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