The Connecticut League was a minor league that operated during the following years-1888, 1891, 1895 Independent, 1894 Class B, 1897-1901 Class F, 1902-1904 Class D and 1905-1912 Class B
1888 Bridgeport CT, Danbury Ct, Derby Ct, Meriden Ct, New Haven CT, Norwalk CT and Waterbury CT. During ht e Season, Bridgeport move to Stamford CT
1891 Ansonia CT, Bristol-Plainville, Ct, Hartford, Ct, New Britian Ct, Norwich Ct, Portland Ct, Southington Ct, Waterbury CT, West Haven Ct
1894 New Britian Ct, New Haven Ct, Norwich Ct, Waterbury Ct and Williamston Ct
1895 Bridgeport Ct, Hartford Ct, Meriden Ct, Waterbury Ct
1897 Bridgeport Ct, Bristol Ct, Derby Ct, Meriden Ct, Torrington Ct, Waterbury Ct
1898 Danbury Ct, New Britian Ct, New Haven Ct, and New London Ct, enter the league and Bristol and Torrington has left the league.
1899 Bristol Ct and Norwich Ct enter the League and Danbury and New Britian has left the league.
1900 No teams enter and left the league.
1901 No teams enter and left the league.
1902 Hartford CT and Springfield Ma enter the league adn Bristo and Derby has left the league.
1903 Holyoke Ma enter the league and Waterbury has left the league.
1904 No teams enter and left the league.
1905 No teams enter and left the league.
1906 Waterbury Ct enter the league and Meriden has left the league.
1907 No teams enter and left the league.
1908 Meriden Ct and New Britian Ct enter the League and Norwich and New London has left the league.
1909 Northampton Ma enter the league and Merdien has left the league.
1910 No teams enter and left the league.
1911 No teams enter and left the league.
1912 New Britian Ct has enter the League and New Britian, Northampton and waterbury has left the league. During the season New Britain move to Waterbury.
1913 Before the start of the Season Connecticut League changed its name to Eastern Association