|1890||Buffalo Bisons/Montreal, Detroit Wolverines, Grand Rapids Shamrocks, Hamilton Hams/Montreal, London Tecumsehs, Saginaw-Bay City Hyphens, Toronto Canucks|
|1888||Albany Governors, Buffalo Bisons, Hamilton Hams, London Tecumsehs, Rochester Jingoes, Syracuse Stars, Toronto Canucks, Troy Trojans|
|1887||Binghamton Crickets, Buffalo Bisons, Hamilton Hams, Jersey City Skeeters, Newark Little Giants, Oswego Starchboxes, Rochester Maroons, Scranton Miners,
Syracuse Stars, Toronto Canucks, Utica Pent Ups, Wilkes-Barre Coal Barons
|1878||Binghamton Cricket, Buffalo, Hornellsville Hornells, London Tecumseh, Lowell, Lynn Live Oaks/Worcester, Manchester, New Bedford/New Haven/Hartford,
Pittsburgh Allegheny, Rochester, Springfield, Syracuse Stars, Utica
|1877||Columbus Buckeyes, Guelph Maple Leafs, London Tecumseh, Lynn Live Oaks, Manchester, Pittsburgh Allegheny, Rochester|
Historical performance data for professional leagues (affiliated minor leagues, independent minor leagues, fall/winter leagues, and other international leagues) is provided by and licensed from 24-7 Baseball and Chadwick Baseball Bureau. It incorporates the work of many stalwart baseball researchers, including Cliff Blau, Art Cantu, Frank Hamilton, Reed Howard, Kevin Johnson, Bob McConnell, Jack Morris, and Ray Nemec, as well as members of the Minor Leagues Committee of the Society for American Baseball Research.
Perhaps most importantly, it builds upon the seminal work of Ed Washuta, who magnanimously provided the framework to make the whole thing possible.