"Historical Summary of Coal-Mine Explosions in the U.S., 1810-1958," Bulletin 586 by H.B. Humphrey, 1960

"Historical Summary of Coal-Mine Explosions in the U.S., 1810-1958," Bulletin 586 by H.B. Humphrey, 1960, Box: 65a, Folder: 9. 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/112512 Accessed November 23, 2024.