Ed's site has a lot of illegals.
http://chipster.net/

Ivy Miller was a front man for Benny Binion in those days. I have a number of different initial chips shipped to Ivy. He usually used other peoples initials as front men for the games.
Benny, Ivy, Herbert "The Cat" Nobel, etc were called the "Dallas Maffia" in those days.
Nobel and Binion had a Chicago style gang war going for several years. Many members of both gangs died.