September 6, 1869 The Avondale Mine Disaster occurred near Plymouth Township, Pennsylvania.

AVONDALE MINE DISASTER    sung by Paul Clayton     https://www.youtube.com/watch?v=X3QcMcUznWM
Various other recordings of "The Avondale Mine Disaster" on YouTube     https://www.youtube.com/results?search_query=the+avondale+mine+disaster+son g

“Avondale Mine Disaster” from Wikipedia    https://en.wikipedia.org/wiki/Avondale_Mine_disaster