21 March 1973 Lofthouse Colliery Disaster in the West Riding of Yorkshire, England.
Lofthouse Colliery Disaster, article from Wikipedia     https://en.wikipedia.org/wiki/Lofthouse_Colliery_disaster

LOFTHOUSE MINERS DISASTER SONG  - The Shufflers of Filey       https://www.youtube.com/watch?v=OXVVvA57H94
LOFTHOUSE COLLIERY DISASTER   - Three Sheets T' Wind       https://www.youtube.com/watch?v=y0vtNa06Zlo