One year later,Colorado Militia and mining company mercenaries north of Trinidad Colorado,opened fire on a camp of striking miners,most of whom were Italian immigrants.Some thirteen were killed by gunfire,while additional women and children (the youngest child 4 years old) who had taken cover in storage pits dug under the tents were burned to death when the troops set fire to the encampment.This became known as the Ludlow Massacre. I don't know if there are any songs that document this event,but there should be.