| 1962 | A | Binghamton Triplets, Charleston Indians, Elmira Pioneers, Springfield Giants, Williamsport Grays, York White Roses |
| 1961 | A | Binghamton Triplets, Johnstown Red Sox, Lancaster Red Roses, Reading Indians, Springfield Giants, Williamsport Grays |
| 1960 | A | Allentown Red Sox, Binghamton Triplets, Lancaster Red Roses, Reading Indians, Springfield Giants, Williamsport Grays |
| 1959 | A | Albany Senators, Allentown Red Sox, Binghamton Triplets, Lancaster Red Roses, Reading Indians, Springfield Giants, Williamsport Grays, York White Roses |
| 1958 | A | Albany Senators, Allentown Red Sox, Binghamton Triplets, Lancaster Red Roses, Reading Indians, Springfield Giants, Williamsport Grays, York White Roses |
| 1957 | A | Albany Senators, Binghamton Triplets, Reading Indians, Schenectady Blue Jays, Springfield Giants, Syracuse/Allentown Chiefs |
| 1956 | A | Albany Senators, Allentown Cardinals, Binghamton Triplets, Johnstown Johnnies, Reading Indians, Schenectady Blue Jays, Syracuse Chiefs, Williamsport Grays |
| 1955 | A | Albany Senators, Allentown Cardinals, Binghamton Triplets, Elmira Pioneers, Reading Indians, Schenectady Blue Jays, Wilkes-Barre Barons/Johnstown Johnnies, Williamsport Grays |
| 1954 | A | Albany Senators, Allentown Cardinals, Binghamton Triplets, Elmira Pioneers, Reading Indians, Schenectady Blue Jays, Wilkes-Barre Barons, Williamsport Grays |
| 1953 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Reading Indians, Schenectady Blue Jays, Scranton Miners, Wilkes-Barre Barons, Williamsport A's |
| 1952 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Reading Indians, Schenectady Blue Jays, Scranton Miners, Williamsport Tigers |
| 1951 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Schenectady Blue Jays, Scranton Red Sox, Wilkes-Barre Indians, Williamsport Tigers |
| 1950 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Scranton Miners, Utica Blue Sox, Wilkes-Barre Indians, Williamsport Grays |
| 1949 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Scranton Red Sox, Utica Blue Sox, Wilkes-Barre Indians, Williamsport Tigers |
| 1948 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Scranton Red Sox, Utica Blue Sox, Wilkes-Barre Indians, Williamsport Tigers |
| 1947 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Scranton Red Sox, Utica Blue Sox, Wilkes-Barre Barons, Williamsport Tigers |
| 1946 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Chiefs, Scranton Red Sox, Utica Blue Sox, Wilkes-Barre Barons, Williamsport Grays |
| 1945 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Bees, Scranton Miners, Utica Blue Sox, Wilkes-Barre Barons, Williamsport Grays |
| 1944 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Laurels, Scranton Miners, Utica Blue Sox, Wilkes-Barre Barons, Williamsport Grays |
| 1943 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Bees, Scranton Red Sox, Springfield Rifles, Utica Braves, Wilkes-Barre Barons |
| 1942 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Bees, Scranton Red Sox, Springfield Rifles, Wilkes-Barre Barons, Williamsport Grays |
| 1941 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Bees, Scranton Red Sox, Springfield Nationals, Wilkes-Barre Barons, Williamsport Grays |
| 1940 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Bees, Scranton Red Sox, Springfield Nationals, Wilkes-Barre Barons, Williamsport Grays |
| 1939 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Bees, Scranton Red Sox, Springfield Nationals, Wilkes-Barre Barons, Williamsport Grays |
| 1938 | A | Albany Senators, Binghamton Triplets, Elmira Pioneers, Hartford Laurels, Hazleton Red Sox, Trenton Senators, Wilkes-Barre Barons, Williamsport Grays |
| 1932 | A | Albany Senators, Allentown Buffaloes, Bridgeport Bears, Hartford Senators, New Haven Bulldogs, Norfolk Tars, Richmond Colts, Springfield Rifles |
| 1931 | A | Albany Senators, Allentown Buffaloes, Bridgeport Bears, Hartford Senators, New Haven Bulldogs, Norfolk Tars, Richmond Byrds, Springfield Ponies |
| 1930 | A | Albany Senators, Allentown Dukes, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Providence Grays, Springfield Ponies |
| 1929 | A | Albany Senators, Allentown Dukes, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Providence Grays, Springfield Ponies |
| 1928 | A | Albany Senators, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Providence Grays, Springfield Ponies, Waterbury Brasscos |
| 1927 | A | Albany Senators, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Providence Grays, Springfield Ponies, Waterbury Brasscos |
| 1926 | A | Albany Senators, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Providence Rubes, Springfield Ponies, Waterbury Brasscos |
| 1925 | A | Albany Senators, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Springfield Ponies, Waterbury Brasscos, Worcester Panthers |
| 1924 | A | Albany Senators, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Springfield Ponies, Waterbury Brasscos, Worcester Panthers |
| 1923 | A | Albany Senators, Bridgeport Americans, Hartford Senators, New Haven Profs, Pittsfield Hillies, Springfield Ponies, Waterbury Brasscos, Worcester Panthers |
| 1922 | A | Albany Senators, Bridgeport Americans, Fitchburg/Worcester Boosters, Hartford Senators, New Haven Indians, Pittsfield Hillies, Springfield Ponies, Waterbury Brasscos |
| 1921 | A | Albany Senators, Bridgeport Americans, Hartford Senators, New Haven Indians, Pittsfield Hillies, Springfield Hampdens, Waterbury Brasscos, Worcester Boosters |
| 1920 | A | Albany Senators, Bridgeport Americans, Hartford Senators, New Haven Weissmen, Pittsfield Hillies, Springfield Hampdens, Waterbury Brasscos, Worcester Boosters |
| 1919 | A | Bridgeport Americans, Hartford Senators, New Haven Weissmen, Pittsfield Hillies, Providence Grays, Springfield Ponies, Waterbury Nattatucks, Worcester Boosters |
| 1918 | B | Bridgeport Americans, Hartford Senators, New Haven Murlins, New London Planters, Providence Grays, Springfield Ponies, Waterbury Nattatucks, Worcester Boosters |
| 1917 | B | Bridgeport Americans, Hartford Senators, Lawrence Barristers, New Haven Murlins, New London Planters, Portland Duffs, Springfield Green Sox, Worcester Busters |
| 1916 | B | Bridgeport Hustlers, Hartford Senators, Lawrence Barristers, Lowell Grays, Lynn Pipers, New Haven Murlins, New London Planters, Portland Duffs,
Springfield Ponies, Worcester Busters |
| 1911 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Indians, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1910 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Indians, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1909 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Indians, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1908 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Indians, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1907 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Sailors, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1906 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Sailors, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1905 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Sailors, Providence Clamdiggers, Rochester Bronchos, Toronto Maple Leafs |
| 1904 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Sailors, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1903 | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals/Worcester Riddlers, Newark Sailors, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| 1902 | A | Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Sailors, Providence Grays, Rochester Bronchos, Toronto Maple Leafs, Worcester Hustlers |
| 1901 | A | Buffalo Bisons, Hartford Indians/Wooden Nutmegs, Montreal Royals, Providence Clamdiggers/Grays, Rochester Bronchos, Syracuse Stars/Brockton B's, Toronto Royals, Worcester Quakers |
| 1900 | A | Hartford Indians/Wooden Nutmegs, Montreal Royals, Providence Clamdiggers/Grays, Rochester Bronchos, Springfield Ponies/Maroons, Syracuse Stars, Toronto Canucks, Worcester Farmers |
| 1899 | A | Hartford Indians, Montreal Royals, Providence Clamdiggers, Rochester Bronchos, Springfield Ponies, Syracuse Stars, Toronto Maple Leafs, Worcester Farmers |
| 1898 | A | Buffalo Bisons, Montreal Royals, Providence Clamdiggers/Grays, Rochester Patriots/Ottawa Wanderers, Springfield Ponies/Maroons, Syracuse Stars, Toronto Canucks, Wilkes-Barre Coal Barons |
| 1897 | A | Buffalo Bisons, Providence Clamdiggers/Grays, Rochester Brownies/Montreal Royals, Scranton Red Sox, Springfield Ponies/Maroons, Syracuse Stars, Toronto Canucks, Wilkes-Barre Coal Barons |
| 1896 | A | Buffalo Bisons, Providence Grays, Rochester Blackbirds, Scranton Miners, Springfield Ponies, Syracuse Stars, Toronto Canadians/Albany Senators, Wilkes-Barre Coal Barons |
| 1895 | A | Buffalo Bisons, Providence Grays, Rochester Browns, Scranton Coal Heavers, Springfield Maroons, Syracuse Stars, Toronto Canucks, Wilkes-Barre Coal Barons |
| 1894 | N/A | Binghamton Bingoes/Allentown Buffaloes, Buffalo Bisons, Erie Blackbirds, Providence Clamdiggers, Springfield Ponies/Maroons, Syracuse Stars, Troy Washerwomen/Scranton Indians, Wilkes-Barre Coal Barons |
| 1893 | N/A | Albany Senators, Binghamton Bingoes, Buffalo Bisons, Erie Blackbirds, Providence Clamdiggers, Springfield Ponies, Troy Trojans, Wilkes-Barre Coal Barons |
| 1892 | N/A | Albany Senators, Binghamton Bingos, Buffalo Bisons, Elmira Gladiators, New Haven Nutmegs, Philadelphia Athletics, Providence Grays, Rochester Flour Cities,
Syracuse/Utica Stars, Troy Trojans |
| 1887 | N/A | Bridgeport Giants, Danbury Hatters, Hartford Dark Blues, New Haven Blues, Springfield Horsemen, Waterbury Brass Citys |
| 1886 | N/A | Bridgeport Giants, Hartford Dark Blues, Jersey City Jerseys, Long Island A's, Meriden Silvermen, Newark Little Giants, Providence Grays, Waterbury Brassmen |
| 1885 | N/A | Bridgeport Giants, Jersey City Skeeters, Lancaster Ironsides/Baltimore Monumentals, Newark Domestics, Norfolk, Richmond Virginians, Trenton Trentonians, Washington Nationals,
Waterbury, Wilmington Blue Hens/Atlantic City |
| 1884 | N/A | Allentown Dukes, Baltimore Monumentals, Brooklyn Atlantics, Harrisburg Olympics, Lancaster Ironsides, Newark Domestics, Reading Actives, Richmond Virginias,
Trenton Trentonians, Wilmington Quicksteps, York White Roses |
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