Considered the first minor league circuit in baseball history, the Northwestern League was organized in Rockford, Illinois on January 2, 1879. The organization included the Davenport Brown Stockings, Omaha Green Stockings, Dubuque Red Stockings, and Rockford White Stockings. Unfortunately, the stocking league became defunct before the season even came to an end as a result of lacking a fixed schedule and financial mismanagement.
Team standings and league leaders are listed in the charts below, courtesy of Baseball Reference:
baseball-reference.com