In the scrabbly hill country of central Pennsylvania, where coal runs rich to the surface, a man could almost breathe the trouble in the air. Across five counties the peace was broken by Americans fighting Americans.
At the black-scarred coal strips and tipples of 70 independent coal mines, owners and a scattering of non-union diggers worked warily, with loaded shotguns and rifles close at hand. A convoy of 15 loaded coal trucks was ambushed in hilly Centre County, attacked with rifle fire and stones before the drivers could rumble on to safety. At Grassflat, a $10,000 tipple of the Junedale Coal Co....