Seventy Years of Progress in the Railway Post Office In a little car like this on July 28, 1862, enroute from West Quincy to St. Joseph, Missouri over what is now a part of the Burlington main line from Chicago to Kansas City and St. Joseph, United States Mail was first sorted while in transit. The purpose was to speed the departure of the overland stage coach from St. Joseph to California. At the right is the modern standard Railway Post Office, in several of which the California and other western mail is now sorted nightly on the Burlington fast mail trains between Chicago and Omaha. The old and the new mail cars form a part of the Burlington's exhibit at A Century of Progress Expostion Burlington Route |