This was the best I could do for a Labor Day themed post — from my personal collection, a 1944 pamphlet published by a group of Seattle's American Federation of Labor (AF of L) union councils endorsing Franklin Roosevelt for re-election.
The University of Washington's Pacific Northwest Labor and Civil Rights Projects' website, "The Great Depression in Washington State," sheds some additional light on the Puget Sound region's experiences with strikes and unions during the early 20th century.
