Ruven Kleiner was born in Poland in 1924 to Betzalel and Rakhel nee Shpigel. Prior to WWII he lived in Bendin, Poland. During the war he was in Bendin, Poland.

Ruven was murdered in the Shoah (according to this source).

This information is based on Pages of Testimony (displayed here) submitted by his nephew, Ester Lazar and by, Toni Rembrant