The Genna crime family (1921- 1925) also called the "Genna Gang" and the "Genna Brothers", was a Prohibition era crime family in Chicago. From 1921 to 1925, the family was headed by the six Genna brothers, known as the "Terrible Genna's". These brothers were Sicilians from the town of Marsala and operated from Chicago's Little Italy and maintained control over the Unione Siciliana. They were allies with fellow Italian gang the Chicago Outfit. The Genna crime family met it's demise after a bloody gang war in the 1920s against the North Side Gang. It's remaining members would be either abolished or absorbed by the Chicago Outfit.