In 1904, the Blues played as members of the short lived Class D level Oregon State League.
[2][3][4] The league began play in controversy due to the Vancouver franchise.
[5] This was because Oregon State League was not going to be admitted to the National Association until it vacated the Vancouver, Washington franchise, which was deemed to be in the territory of the Portland Browns franchise of the Pacific Coast League.
[6][3] Eugene began the season with a 22–19 record, playing under managers Terry McKune and Frank DuShane.
Reduced to two teams, the Oregon State League immediately stopped play on that date.