アイリッシュ・マフィア
オクラホマ州やアラバマ州、ジョージア州などでアイリッシュ・マフィアの活動が見られた。
Carr, Howie. The Brothers Bulger: How They Terrorized and Corrupted Boston for a Quarter Century, Grand Central Publishing, 2006. ISBN 978-0-446-61888-5..
Covey, Herbert C. Street Gangs Throughout the World. Charles C. Thomas. ISBN 978-0-398-07905-5
Downey, Patrick. Gangster City: The History of the New York Underworld, 1900–1935. Barricade Books, 2004. ISBN 1-56980-267-X
Durney, James. The Mob: The History of Irish Gangsters in America.
English, T. J. The Westies.
_____. Paddy Whacked: The Untold Story of the Irish American Gangster.