Ebbutt, Frank. Brief Report of Carmen Mine, La Bufa - Batopilas River, Chihuahua, Mexico, 1942 December

Ebbutt, Frank. Brief Report of Carmen Mine, La Bufa - Batopilas River, Chihuahua, Mexico, 1942 December, Box: 2, Folder: 7. El Potosí Mining Company Records, 33399703. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/263493 Accessed September 25, 2026.