According to Michael Pizer: “There were four brothers: David, Fela, Yankif, Yankesh. They pressed oil by having the horses walk around and drain it from grain. They lived two doors down from the Przedecki family on Rynek. ”

According to Yurig Francus: Rushka and Sercha Hirschcovitz survived in Russia. Sercha married a "big shot" in the Polish communist party in Warsaw.