Part 2 National Girls Baseball League 1946-1947, 1949-1953Nebraska State League 1887Negro Major American and National League 1964Negro National Baseball Association 1957-1959Negro National Baseball League 1911Negro Southern League 1924-1925, 1928, 1930, 1937-1944New Eastern Colored League 1939New England League 1885New Jersey Colored League 1911New Mexico League 1888New York Collegiate League 1978-1992New York State League 1884Non-League Players 1879North Eastern Saskatchewan Senior League 1946-1947, 1950-1956North Eastern Saskatchewan Senior League 1958-1964, 1973-1975North Carolina Negro League 1946-1948North Saskatchewan River Baseball League 1992-2009Northeastern Connecticut State League 1885Northeastern League 1895-1896Northern Kentucky and Ohio Negro Semi Pro League 1936Northern Main