1879 Northwestern League +,
1881 Northwestern League +,
1883 Northwestern League +,
1884 Northwestern League +,
1885 Northwestern League +,
1886 Northwestern League +,
1887 Northwestern League +,
1891 Northwestern League +,
1895 Northwestern League +,
1905 Northwestern League +,
1906 Northwestern League +,
1907 Northwestern League +,
1908 Northwestern League +,
1909 Northwestern League +,
1910 Northwestern League +,
1911 Northwestern League +,
1912 Northwestern League +,
1913 Northwestern League +,
1914 Northwestern League +,
1915 Northwestern League +,
…
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League-season-name-short
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