I currently have over 600,000 mining accident records (fatal and nonfatal) covering most of the United States and some provinces in Canada, New Zealand and Australia. However, about 283,000 of the mine accident records are the state of Pennsylvania. The mining accident records are from the late 1800s through the early 1900s. I have knowledge of all major mine disasters in the US. I can provide advice on finding U.S. mine fatalities from the late 1960s and later.
The best way to contact me is to leave a message for me on my Message Wall or send a wiki email to Jerry. I continue to collect mining accident records, and the latest dates I have available, types of records and areas are posted on this website. Before requesting help, be sure to review Research Request Guidelines, then navigate to the state where you need help, select an area of interest, and look for Jerry.
I regularly check the 16 state mine board postings on the Roots Web Mining Boards and Mining Categories - U.S. web page. By searching, one may find a helpful historical query. Any Ancestry posting more than two years old probably has a bad email address link,

Also see 

“Mining Accidents United States, Canada, Australia & New Zealand”

  or search for mining accidents weebly

Community content is available under CC-BY-SA unless otherwise noted.