How did Vanderbilt become a railroad baron?

Answer 1

These sites will be helpful.

http://www.u-s-history.com/pages/h845.html

http://en.wikipedia.org/wiki/Cornelius_Vanderbilt

http://www.scripophily.net/nycentralblue.html

http://www.raken.com/American_Wealth/railroad_barons/railroad_tycoons1.asp