Letter from Douglas M. Herrera to his father, John J. Herrera, dated April 13, 1971 and mailed from Merida, Yucatan, to Houston, Texas. Douglas wishes Herrera a happy birthday and describes his travels in Mexico and plans to visit the Mayan temples.

Letter to Mr. and Mrs. John J. Herrera from their son, Douglas M. Herrera, dated October 13, 1968. Douglas describes watching the Olympic Games in Mexico, and his plans to move to a different apartment near the Mexican university he is attending. The letter switches from Spanish to English. Douglas explains, “I guess I’ve murdered the family tongue enough for one letter so I’ll revert to a bit of jolly ole English.”

Postcard to John J. Herrera from Terry Serna that reads: "Hi Johnny! Still in the convention mood. Having a ball before returning to the grind! Terry Serna." The front of the postcard has the image of of a waterfall with people in the foreground. The image is identified on the back of the postcard as "Cascada La Cola De Caballo, Horsetail Falls near Monterrey. Monterrey, N. L., Mexico"

Envelope addressed to John J. Herrera, mailed from Guadalajara by Alberto Garibi Harper, Jr.

Affidavit submitted by Manuel Urbina, and witnessed by Alfonso Pena, in Webb County, Texas. The affidavit states that Urbina is able to support his wife, Irene Salce de Urbina, and their children, and he would like them to live with him in the United States, as they are currently residing in Nuevo Laredo, Tamaulipas, Mexico.