In June 1867, a thunderstorm passed through Wiconisco, Pennsylvania and electrocuted miners deep within one of the town's coal mines.
In October 1862, Irish miners in Pennsylvania staged an armed revolt against the government. Their actions foreshadowed even bloodier events.
In a report written in April 1857, Joseph Ostermann details his work in opening the Williamstown Tunnel in Upper Dauphin County.
A young boy faced death in the mines of the Lykens Valley Coal Company in March 1859. And against all odds, he came out victorious.
Industrialist Henry Thomas worked with infamous Pennsylvania politicians to develop the coal trade in Williams Valley during the Civil War.
Work in the anthracite mines of Eastern Pennsylvania ranks among the deadliest jobs in American history.
The accidental explosion in Bear Valley, in Schuylkill County, could be heard as far away as Harrisburg.
A visitor from Pottsville describes a rapidly expanding community in upper Dauphin County in 1871.
The disgraced Secretary of War often invested in industrial ventures in Pennsylvania.