Who's got the biggest rock, fella?

Who is the richest man in the history of the United States with a wealth-to-GDP ration of 1/65? Click these links to find out!

http://www.forbes.com/asap/1998/0824/032.html

http://www.nytimes.com/ref/business/20070715_GILDED_GRAPHIC.html#

http://money.cnn.com/galleries/2007/fortune/0702/gallery.richestamericans.fortune/index.html