The Ludlow Massacre was an attack by the Colorado National Guard and Colorado Fuel & Iron Company camp guards on a tent colony of 1,200 striking coal miners and their families at Ludlow, Colorado, on April 20, 1914. Some two dozen people, including women and children, were killed. Woody Guthrie wrote: “I made up these like I was there on the spot, the day and the night it happened. This is the best way to make up a song like this. When you read the life work of Mother Ella Reeves Bloor ‘We Are Many’ you will see this story of the Ludlow Massacre, you will be there, you will live it. Ludlow Massacre was one of the hundred of battles fought to build trade unions. I want to sing a song to show our soldiers that Ludlow Massacres must not ever come back to us to kill 13 children and a pregnant woman, just to force you to work for cheap wages.”