Agenda for a trip to Mexico from October 5-13, 1951. Sightseeing plans on agenda mention visiting Mexico City, Acapulco, Guadalajara, Veracruz. Includes meeting with the Mayor and City Officials of Mexico City at City Hall, and introduction to President Miguel Alemán Valdés.

Spanish language newsletter containing riddles, poems, and articles. Contains two English language articles: "The Problem of the Independence of Puerto Rico" and "The Jewish Problem in the Post-War World," which contains excerpts from five different articles. The cost of the newsletter was 5 cents.

Postcard to John J. Herrera and his wife Olivia from their son, Douglas M. Herrera. The postcard was mailed from Merida, Mexico to Houston, Texas and details the next portion of Douglas's journey and receipt of his father's telegram. The front image is of a hackney coach with "mestizas", two women standing in traditional dress in front of Saint John's Temple.

Letter from Douglas Herrera to his father, John J. Herrera, dated October 15, 1969. The letter, mailed from University of the Americas in Mexico to Houston, Texas, details the new house Douglas has found near campus. Douglas also wishes his father luck on an upcoming speech and discusses the ways he believes the Latino minority can elevate itself in society through peaceful means and expresses concern over the tactics of the Brown Power Movement.

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.”