Speculator mine disaster. 164 killed at Butte, Mont. – 1917

Amalgamated Meat Cutters union organizers launch a campaign in the nation’s packinghouses, an effort that was to bring representation to 100,000 workers over the following two years - 1917

The Library Employees’ Union is founded in New York City, the first union of public library workers in the United States. A major focus of the union was the inferior status of women library workers and their low salaries - 1917