http://www.blogoklahoma.us/blog.aspx?id=678
http://www.biography.com/news/famous-inmates-of-alcatraz
http://www.biography.com/people/machine-gun-kelly-507610
http://now-here-this.timeout.com/2012/03/13/we-spend-a-night-banged-up-in-alcatraz/
http://www.history.com/this-day-in-history/capone-goes-to-prison
http://www.biography.com/people/al-capone-9237536#synopsis
http://www.alcatrazhistory.com/famous.htm
http://www.therichest.com/rich-list/the-10-most-notorious-inmates-of-alcatraz/?view=all
http://www.listal.com/list/
https://history.knoji.com/alcatrazs-most-notorious-inmates/