Analysis of information sources in references of the Wikipedia article "Battle of Blair Mountain" in English language version.
... the battle was renewed on September 1. That morning, a detachment of union men assaulted a spot called Craddock Fork with a Gatling gun looted from a coal company store. Logan forces fought back with a machine gun, but after three hours of heavy fire, their weapon jammed. The miners surged forward and briefly broke the defensive line, only to be repulsed by a fusillade of bullets from a second machine gun nest located further up the ridge.
the two sides battled with gatling guns, rifles, and other firearms along the ridge of Blair Mountain.