http://www.nytimes.com/1982/02/10/us/fraternity-barred-for-sponsoring-racist-party.html
I have read online this Fraternity has a connection at its founding to the Klu Klux Klan. Haven't found proof, but I wouldn't be surprised if it were true.
I remember that incident! I was at the University of Cincinnati at the time and they were telling us to avoid wearing Greek letters on campus to avoid trouble.