The Iowa State League operated as a Class D Organization in 1904-05, 1907 and 1912. The same league&nbsp

(in the same class) was called the Iowa League in 1906.

Iowa' 'State' (D 1904-05, 1907, 1912)

'Iowa' (D 1906)

Boone, IA: 1904-05

Boone/Clinton, IA: 1906

Burlington, IA: 1904-07

Clear Lake, IA: 1912

Emmetsburg, IA: 1912

Esterville, IA: 1912

Ft Dodge, IA: 1904-06, 1912

Jacksonville, IL: 1907

Keokuk, IA: 1904-07

Marshalltown, IA: 1904-07

Mason City, IA: 1912

Oskaloosa, IA: 1904-07

Ottumwa, IA: 1904-07

Quincy, IL: 1907

Waterloo, IA: 1904-07

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