Here s a few suggestions for songs that I think may work, though not all are traditional:

Cotton Mill Girls - I believe Hedy West did thiis

Nine pound hammer

Dark as a dungeon

Schoolday's Over - a poignant mining song by Ewan McCall

Aragon Mill -Si Kahn

Brother can you spare a dime


Calico Silver by Michael Murphy - a beautiful song that tells of the rise and fall of
   a silver mine in the old West. Worth hearing.

All of these can be found on YouTube.
I hope this is helpful.
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