Mendel Ruven Zelwanski was born in Radzilow, Poland, 1927 to Eli Yitzkhak and Gitel. He was a yeshiva student and single. Prior to WWII he lived in Szczuczyn, Poland. During the war he was in Szczuczyn, Poland. Mendel Ruven was murdered in the Shoah. Place of death: Szczuczyn, Poland, 1941.
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