Speech delivered by John J. Herrera on April 21, 1942 at San Jacinto Memorial Park for the 106th anniversary of the Battle of San Jacinto. Herrera reminds the audience of the important role Latin American patriots played in the battle for Texas independence and continue to play in modern times. Herrera cites international unity as the key to victory in World War II.

Newspaper clipping of an article covering the San Jacinto Day Celebration published on April 22, 1942. The article is pasted on a piece of brown paper along with John J. Herrera's business card that lists his profession as "Notary Public, Income Tax Work". The article includes four photographs including one of John J. Herrera holding a memorial wreath.

Recommendation letter from H. W. Elrod, Principal of Dow Junior High School, to The Houston Bar Association and The Board of Legal Examiners, in Austin, Texas.

A program for the LULAC banquet honoring President General George I. Sánchez and Licenciado Manuel C. Gonzales on Sunday, January 18, 1942 at the Texas State Hotel Mezzanine in Houston, Texas. The program includes a menu of the dinner and a list of the speeches and speakers. John J. Herrera gave a speech, "The Problems of the Latin American in Houston Territory."

Letter to Mr. Hausler, Personnel Superintendent at the Brown Ship Yard in Houston, Texas from John J. Herrera dated August 14, 1942. Written on LULAC letterhead, the letter is concerning "discrimination against workers of Mexican extraction." John J. Herrera is writing to inquire if Mr. Hausler is aware of these practices.

Letter to John J. Herrera from E. L. Hausler, Personnel Director at the Brown Shipbuilding Company in Houston, Texas dated August 17, 1942. This is a reply to concerns about discrimination in hiring practices with an invitation to visit the site.

1941 Harris County poll tax receipt number 53574 for John J. Herrera. It includes demographic information about Herrera and is signed by the deputy of the Harris County Assessor and Collector of Taxes. Dates of elections are listed on the back.

1941 Harris County poll tax receipt number 47738 for Mrs. Olivia C. Herrera. It includes demographic information about Herrera and is signed by the deputy of the Harris County Assessor and Collector of Taxes. Dates of elections are listed on the back.

Letter of recommendation for John J. Herrera to the Houston Bar Association, Board of Legal Examiners, from Thomas E. Lichenstein. Letter is written on Great Southern Life Insurance Company letterhead.

Recommendation letter for John J. Herrera from W. A. Lee to the Board of Legal Examiners and the Houston Bar Association.