From the United Mine Workers of America website:
The date April 20, 1914 will forever be a day of infamy for American workers. On that day, 19 innocent men, women and children were killed in the Ludlow Massacre. The coal miners in Colorado and other western states had been trying to join the UMWA for many years. They were bitterly opposed by the coal operators, led by the Colorado Fuel and Iron Company.
Upon striking, the miners and their families had been evicted from their company-owned houses and had set up a tent colony on public property. The massacre occurred in a carefully planned attack on the tent colony by Colorado militiamen, coal company guards, and thugs hired as private detectives and strike breakers. They shot and burned to death 18 striking miners and their families and one company man. Four women and 11 small children died holding each other under burning tents. Later investigations revealed that kerosine had intentionally been poured on the tents to set them ablaze. The miners had dug foxholes in the tents so the women and children could avoid the bullets that randomly were shot through the tent colony by company thugs. The women and children were found huddled together at the bottoms of their tents.
The Baldwin Felts Detective Agency had been brought in to suppress the Colorado miners. They brought with them an armored car mounted with a machine gun—the Death Special— that roamed the area spraying bullets. The day of the massacre, the miners were celebrating Greek Easter. At 10:00 AM the militia ringed the camp and began firing into the tents upon a signal from the commander, Lt. Karl E. Lindenfelter. Not one of the perpetrators of the slaughter were ever punished, but scores of miners and their leaders were arrested and black-balled from the coal industry.
A monument erected by the UMWA stands today in Ludlow, Colorado in remembrance of the brave and innocent souls who died for freedom and human dignity.
In December, 2008, the U.S. Department of the Interior designated the Ludlow site as a National Historic Landmark. “This is the culmination of years of work by UMWA members, retirees and staff, as well as many hundreds of ordinary citizens who have fought to preserve the memory of this brutal attack on workers and their families,” UMWA International President Cecil E. Roberts said.
“The tragic lessons from Ludlow still echo throughout our nation, and they must never be forgotten by Americans who truly care about workplace fairness and equality,” Roberts said. “With this designation, the story of what happened at Ludlow will remain part of our nation’s history. That is as it should be.”
JD adds: it is thought that up to 200 people were killed in the course of the Colorado miners’ strike. In response to the massacre the UMWA urged members to acquire arms and fight back, which they did, resulting in a guerrilla war that only ended after ten days when Washington sent in Federal troops to disarm both sides.
Historian Howard Zinn described the massacre as “the culminating act of perhaps the most violent struggle between corporate power and labouring men in American history.”
Eventually, the UMWA ran out of money and the strike was called off in December 1914. The union failed to obtain its central demand – recognition – but the strike did have a lasting effect on industrial relations nationally: the Commission on Industrial Relations under Frank Walsh, was established as a direct result, and provided support for bills establishing a national eight-hour day and a ban on child labour. So the strikers and their wives and children, gunned down and burned to death in their tents, did not die in vain. On this hundredth anniversary, we salute them.