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Edward O'Donnell was the eldest son of Patrick J. O'Donnell and Ann Mahoney. He was born on November 29, 1889 in Canalport, Chicago, Illinois, USA and was a brewery owner and racketeer in Chicago during the 1920s.
Dean O'Banion tells Johnny Torrio that he was confused about the territory rules and was selling in what he thought was Spike's territory to his joint, the Kerry Patch. Dean calls Spike a "good friend." ("Resolution")
- Dean O'Banion: Friend, associate (deceased)
|Season three appearances|
|"Resolution"||"Spaghetti and Coffee"||"Bone for Tuna"||"Blue Bell Boy"|
|"You'd Be Surprised"||"Ging Gang Goolie"||"Sunday Best"||"The Pony"|
|"The Milkmaid's Lot"||"A Man, A Plan..."||"Two Imposters"||"Margate Sands"|