I saw a book in the local library entitled: Beara History and Stories from the Peninsula compiled by Gerard (Gerdie) Harrington, produced by the Beara Historical Society 2005 and Chapter 4 talks about the emigration of miners from Beara to the mines of Michigan and Butte, Montana. Apparently, it is thought that 60% of the Irish who settled in Butte came from the Beara Parishes: Castletownbere, Allihies, Eyeries, Adrigole and Bere Island.
Also spotted Mines – Berehaven on the web.
Now, that is a lot of people! Does anyone have any stories about this migration from Allihies to mines in the USA?
I found the following link Cornish in West Cork . More information on the Cornish in the west Cork mine.
Genetic Genealogist 