Correspondence, typescripts, and assorted documents relating to the reform movement, War of the Reform, and French intervention in Mexico in the latter half of the nineteenth century. The bulk of the correspondence, dated 1851-1883, includes letters from Benito Juárez, Juan Álvarez, Ezequiel Montes, Ignacio Zaragoza, Leonardo Márquez, Manuel Doblado, Antonio Balbuena, Santos Degollado, Joaquín Degollado, Melchor Ocampo, Dolores Quesada de Almonte, Ponciano Arriaga, Porfirio Díaz, Juan Nepomuceno Almonte, Miguel Miramón, Jośe Sánchez Facío, and other persons from opposing factions of the conflicts. A letter dated 1907 to Genaro García relays a copy of a letter from Juan B. Duarte concerning his experiences in the war against the French intervention in Zacatecas in late 1866 and early 1867.

Typescripts include copies of correspondence of Manuel Doblado, Porfirio Díaz, José María Arteaga, and others; two reports by Achille François Bazaine dated 1865 and their translations from French to Spanish; a report on the death of Pedro Morena of the Francisco Javier Mina Expedition and the location of his remains; a diary of Miguel Miramón from March 17-April 1, 1859, concerning military events in Veracruz; newspaper articles; hospital reports on war injuries with lists of patients; and a manuscript by Leon Guzmán entitled “El Partido constitucional: 1a, 2a y 3a época del Presidente D. Benito Juárez.”

Assorted documents in the collection include research notes about and a newspaper clipping by Porfirio Díaz; a printed report dated 1894 about improvements made in Etla, Oaxaca, under the leadership of Agustín Robles Arena; a diary of a journey from New York to Europe in 1859; military orders; a report in English and its Spanish translation on the imprisonment of Emperor Maximilian; a rough draft of an official document from the office of the French commandant en chef in Mexico; and a patriotic poem.