Historical Background
Ricardo Flores Magón (1873-1922), President of the Junta of the Mexican Liberal Party and publisher of REGENERACIONES, Enrique Flores Magón, his brother, and other individuals associated with the Junta of the Mexican Liberal Party in Los Angeles, California were repeatedly imprisoned and investigated from 1907 to 1911 under federal indictment for violating United States neutrality laws. During this period, the Mexican Secretary of Foreign Relations, various Mexican consulates in the United States, and United States federal officials corresponded regularly regarding the evidence of violation of neutrality laws and extradition of the Flores Magón brothers and other members of the Junta of the Mexican Liberal Party. The original correspondence along with related materials such as newspaper clippings and legal documents were saved and are stored at the Archivo General de la Secretaria de Relaciones Exteriores de Mexico in Mexico City. Mr. Pablo Martinez photocopied Tomos XVI and XVII of these records and gave them to the University of California, San Diego.
From the guide to the Secretaria de Relaciones Exteriores de Mexico. Ricardo Flores Magón Documents, 1907-1911, (Mandeville Special Collections Library)