Upper Big Branch: "Preliminary report of Investigation: Upper Big Branch Mine Explosion, April 5, 2010" by Massey Energy and other material, undated

Upper Big Branch: "Preliminary report of Investigation: Upper Big Branch Mine Explosion, April 5, 2010" by Massey Energy and other material, undated, Box: 54, Folder: 10. J. Davitt McAteer Papers regarding Mining Safety, A&M 4219. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/112146 Accessed December 05, 2025.