Lejbel Rubinsztejn was born in Losice, Poland, 1890 to Gdaliyahu Shmuel and Khava. He was married. Prior to WWII he lived in Warszawa, Poland. During the war he was in Siemiatycze, Poland. Lejbel was murdered in the Shoah. Place of death: Treblinka, Poland, 1942.
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