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Adam BaxterI also found some info on Wikipedia:
The International League (IL) is a minor league baseball league which operates in the eastern United States and Canada. Like the Pacific Coast League, it plays at the Triple-A level, which is one step below Major League Baseball. The league was created from the mergers of member teams from three precursor leagues: the Eastern League, founded in 1884; the New York State League, formed in 1885; and the Ontario League, also organized in 1885. The New York State and Ontario leagues merged in 1886 to form the International League, and in 1887 the Eastern League was absorbed to create a 10-club league.
The league collapsed soon afterwards, when the northern teams claimed that it was too onerous to travel to the south and formed the International Association.