North Side Gang
The North Side Gang, also known as the North Side Mob, was an Irish-American criminal organization within Chicago during the Prohibition era from the early 1920s to the mid-1930s. Wikipedia
Founders: Dean O'Banion and Hymie Weiss
Founded: Chicago, IL
Criminal activities: Racketeering, bootlegging, illegal gambling, extortion, robbery, murder
Membership (est.): Around 30 members
Rivals: Chicago Outfit and Genna crime family
Territory: Various neighborhoods in Chicago, mainly North Chicago