MICHIGAN FATAL MINING ACCIDENTS, 1885 - 2006, with miner’s name can provide date, mine, and reference source. However, my database is primarily Houghton county, 1889-2006, and Gogebic Co., 1885-1963.
From Jerry,
http://www.genealogy.com/users/s/h/e/Jerry-Sherard/ “Mining Accidents U.S., Canada and Australia”