Southwest Washington League

The Southwest Washington League operated as a Class D circuit in 1903 thru 1906.

'Southwest Washington' (D 1903-06)

 Aberdeen, WA: 1903-06

 Centralia, WA: 1903-04

 Hoquiam, WA: 1903-06

 Olympia, WA: 1903-06

Montesano Wa 1905