Massachusetts militiamen with fixed bayonets surround a parade of peaceful strikers. The Lawrence textile strike was a strike of immigrant workers in Lawrence, Massachusetts in 1912 led by the Industrial Workers of the World.
"1912 Lawrence Textile Strike" from Wikimedia Commons.
Lawrence Strike, 1912. Children of striking textile workers wait at the train station at Lawrence, Massachusetts, January-March 1912, on their way to stay with sympathizers in other cities offering them food and shelter. (Britannica ImageQuest, Encyclopædia Britannica, 25 May 2016.
quest.eb.com/search/140_
1681502/1/140_1681502/cite)