. . . . . . . . . . "Personal papers including correspondence; manuscripts; interviews; subject, alphabetical, and legal case files; newspapers; and photographs." . . . "Bert Corona papers" . . . . . . . . . . . . . . . . . . . . . . . . . . . "Nacozari mine strike." . . "Los Angeles (Calif.)" . . "Comité Nacional Organizacion Sindical de Trabajadores Immigrantes." . . "Hermandad Mexicana Nacional, Inc." . .