Socialist Party of Washington

The Socialist Party of Washington was the Washington state section of the Socialist Party of America (SPA), an organization originally established as a federation of semi-autonomous state organizations. During the 1910s, the Socialist Party of Washington was one of the largest state affiliates of the SPA in the Western United States, touting a membership which peaked with more than 6,200 paid members.

Source: Wikipedia — Socialist Party of Washington (CC BY-SA 4.0)