Northern State of Indiana League (1909), might have been called Northern State League of Indiana (1910-11) , played as Class D and as an independent in 1912. This league was based in Indiana.
1908 Bluffton, Decatur, Huntington, Kokomo, Marion, Munice
1909 Lafayette and Wabash entered the league; Decatur and Muncie left the league.
1910 Logansport entered the league; Kokomo left the league.
1911 No teams entered or left the league. During the season the Logansport team move to Anderson.
1912 Crown Point, East Chicago, Gary, Hammond, Indian Head, La Porte, Valpariso, Whiting.