Given name: Ryszard Family name: Gerstensang

Head of the Jewish labour column working outside the ghetto; the Chaskielewicz family's neighbour from Franciszkanska Street. His wife was Alina. With fake passport, he went to labour in East Prussia; on the train, he was recognised by Polish workers and escaped from his group in Krolewiec. He worked in paramilitary German engineering organisation, TODT, and worked as a draughtsman in Tallin. After the war, he came back to Warsaw and sought for his wife, but she was already in relationship with another man. Ryszard left for South America.

Stefan Chaskielewicz's friend