Mendel Nisenbaum was born in Wiazowna, Poland, 1918 to Avraham and Rachel nee Rukhman. He was a pupil and single. Prior to WWII he lived in Varsha, Poland. During the war he was in Treblinka, Poland. Mendel was murdered in the Shoah. Place of death: Treblinka, Poland, 1942.
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