P.G.Ballard, T.N. Kipling, J.C. Heslop, L.T. Moore, L.M. Clemence,, undated

P.G.Ballard, T.N. Kipling, J.C. Heslop, L.T. Moore, L.M. Clemence,, undated, Box: 251, Folder: 13. 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/347512 Accessed September 26, 2026.