Program for the Fiestas Patrias Mexicanas convention held in Houston, Texas, on September 15, 1969. Program titled: "Vivimos bajo el signo de su lucha." Contains schedule and advertisements.

Letter from Kenneth Schnitzer of Century Properties to John J. Herrera, September 22, 1969. Schnitzer provides an update to the planned functions for the event and encloses a status report with a schedule for the weekend's functions. The event was scheduled for October 10 and 11, 1969, with a parade and banquet.

Letter from Douglas M. Herrera to his father, John J. Herrera dated September 24, 1969. The letter briefly describes Douglas and Mary's arrival in Mexico and the goes on to discuss at length his concerns over his father's use of diet pills that contain Benzedrine and Dexedrine. Douglas expresses concern over use of these pills and the effects they are having on John's personality and the people around him. Douglas offers to leave school and get a job so that his father does not feel pressured to continue taking speed.