Leonard Chess (March 12, 1917 - October 16, 1969) was a record company executive, founder of Chess Records. Chess was influential in the development of electric blues. He was born Lejzor Czyz in a Jewish community in Motal, Poland (but now within Belarus). He and his brother Fiszel, sister Malka and mother followed their father to Chicago, Illinois in 1928. The family name was changed to Chess, with Lejzor becoming Leonard and Fiszel becoming Philip. Wikipedia
The definitive Wikipedia entry for Leonard Chess. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Leonard_Chess
Leonard Chess and his younger brother Phil (born Fiszel Czyz, 1921) were Jewish immigrants from Poland who settled in Chicago in 1928. www.geocities.com/shakin_stacks/leonardchess.txt