Palmer raids on all Wobbly halls and offices in 48 cities in U.S. Alexander Palmer, U.S. Attorney General, was rounding up radicals and leftists - 1917

Some 2,000 United Railroads streetcar service workers and supporters parade down San Francisco’s Market Street in support of pay demands and against the company’s anti-union policies. The strike failed in late November in the face of more than 1,000 strikebreakers, some of them imported from Chicago - 1917

One hundred "platform men" employed by the privately owned United Railroads streetcar service in San Francisco abandon their streetcars, tying up many of the main lines in and out of the city center - 1917