10 miners were killed when toxic gas from a locomotive filled Williamstown Tunnel on May 25, 1904
The Williamstown Colliery Disaster of 1904

10 miners were killed when toxic gas from a locomotive filled Williamstown Tunnel on May 25, 1904
"The Avondale Mine Disaster" is a miner's ballad originally recorded by folklorist George Korson in 1946.
The Avondale Mine Disaster of September 6, 1869 killed 108 miners and 2 volunteer rescuers.
On February 7, 1862, a roof collapsed inside the Short Mountain Colliery killing a respected miner and wounding several others.
In June 1867, a thunderstorm passed through Wiconisco, Pennsylvania and electrocuted miners deep within one of the town's coal mines.
On June 19, 1863, a crowded passenger train jumped the tracks in northern Dauphin County, injuring dozens and killing 6.
"The excitement is great," reported the Lykens Register in April 1872. Williamstown Colliery had just experienced its deadliest accident to date.