Szymon Kataszek c.1930-33 (National Digital Archive, Poland)
Szymon Kataszek (1898–1943) (born Boruch Szymon Kataszek), was a Polish-Jewish composer, bandleader, pianist, a pioneer of Polish jazz. Born in Warsaw 1898; studied piano at the Warsaw Music Institute and Rome's St. Cecilia Academy. He returned to Poland and first worked as an organist in St. Trinity Church, while also playing piano in nightclubs.