Here is a link to a great article about the 1909 plan of Chicago:

Daniel Burnham, visionary behind the World’s Columbian Exposition and The Plan of Chicago, said, “Make no little plans. They have no magic to stir men’s blood and probably will not themselves be realized.”  And so I begin my exploration into Chicago’s Architecture with a big undertaking indeed: discussing the 1909 Plan of Chicago…..

http://blueprintchicago.wordpress.com/2009/12/22/plan-of-chicago-paris-on-the-prairie/

Source – http://blueprintchicago.wordpress.com/