http://www.aviewoncities.com/chicago/chicagohistory.htm Gwefan 'a view on cities' http://www.aviewoncities.com/chicago/chicagohistory.htm http://www.aviewoncities.com/chicago/chicagohistory.htm Great Chicago Fire history plan of 1909 "Paris of the Prairie plan of 1909 plan of 1909 Chicago plan of 1909 "Paris of the Prairie plan of 1909 "Paris of the Prairie plan of 1909