Starting about 1877, two great railroad developers, William H. Vanderbilt and Jay Gould, began competing for the railroad traffic along the south shore of the Great Lakes. By 1878 William Vanderbilt had a monopoly on rail traffic between Buffalo, New York; Cleveland, Ohio; Detroit, Michigan; and Chicago, because he owned the only railroad linking those cities - the Lake Shore and Michigan Southern Railway. In addition, he was the richest man in America at that time. By 1881 Jay Gould controlled about 15% of all U.S. railroad mileage, most of it west of the Mississippi River and he was considered the most ruthless financial operator in America. Gould's major railroad east of the Mississippi River was the Wabash, St. Louis and Pacific Railway (Wabash). The Wabash mainline ran from St. Louis, Missouri, to Toledo, Ohio, where it was forced to deliver its railroad traffic to William H. Vanderbilt's Lake Shore Railroad for delivery to the eastern United States.