Casa Grande, "C" Plant, 221-222, 230-235, 178-180

Casa Grande, "C" Plant, 221-222, 230-235, 178-180, Box: 282, Folder: 15. Saint John d'El Rey Mining Company Records, 1984-12. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/347583 Accessed September 26, 2026.