The Eastern International League formed for the 1888 season.
[1] The Belleville, Kingston, Oswego Starchboxes and Watertown teams began play on May 25, 1888 as charter members.
[3] During the 1888 season, Oswego disbanded on July 4, 1888 after winning the first–half title.
[6][7] 1888 Eastern International League Oswego disbanded July 4; Belleville transferred to Brockville July 30; Watertown disbanded August 10Oswego won the first half standings.
Kingston won the second half standings The league disbanded August 15.