The Union Association was a Class D organization which operated from 1911 through 1914.

NOTE 1- Some newspapers call this League - Union League

Union Assn (D 1911-14)

Boise, ID: 1911, 1914

Butte, MT: 1911-14

Great Falls, MT: 1911-13

Helena, MT: 1911-14

Missoula, MT: 1911-13

Murray, UT: 1914

Ogden, UT: 1912-14

Salt Lake City, UT: 1911-14