Fred Offenhauser

Fred Offenhauser, Jr. , was an American automotive engineer and mechanic who designed the Offenhauser racing engine, nicknamed the Offy, which dominated competition in the Indianapolis 500 race for decades.

Frederick Offenhauser, Jr., was born November 11, 1888 in Los Angeles, California, the oldest child of Martha and Frederick Offenhauser. Both his parents were natives of Germany his father was a barber. Frederick Jr. was married to Ethel C. Lowery.

Source: Wikipedia