A. Photo of armed men and a monkey. Caption reads, "Train Guard." [Men are probably Rurales.]

A. Photo of armed men and a monkey. Caption reads, "Train Guard." [Men are probably Rurales.], Box: 1, Folder: 6. Mark Florea Upson Photographs, BENSON-MS Upson. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/491218 Accessed September 26, 2026.