Advertisement of a baseball game, Ellington Field vs. Southern Select, to be played at the Cleveland Diamond field, on Sunday April 19, 1942 at 2:30 p.m. The names of the players of each team are shown in the poster. The poster also contains advertisements.

Short document detailing the biographical dates of Manuel Urbina, including his birth and marriage dates and the number of years he served as a minister in various cities.

Copy of an Amendment to League of United Latin American Citizens Charter dated April 15, 1940. The amendment extends the territorial limits of the corporation from "The State of Texas" to "United States of America".

Letter from Arnulfo Zamora in Laredo, Texas, to John J. Herrera in Houston, Texas. Zamora acknowledged receipt of Herrera's letter from March 13, 1947 regarding the application of Felix H. Morales for a radio station permit.

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.

Speech given by Carlos E. Castañeda at San Jacinto on April 21, 1943. Castañeda speaks of the unconquerable determination to do or die by the army of "freemen" to preserve the liberty and freedom of the country in face of the brutal tyranny by the "army of a dictator".

Onionskin carbon copy of a letter sent by John J. Herrera to Dr. Carlos E. Castañeda in Austin, Texas. Herrera requests Dr. Castañeda to write a letter of support for a Spanish speaking radio station in Houston. Herrera also inquires if Dr. Castañeda could make himself available to testify as a witness in an upcoming hearing with the FCC.

An Order for Change in Facilities granted by the Federal Communications Commission. The Order was in response to the application of Eugene J. Roth, trading as Mission Broadcasting Company in San Antonio, Texas.

An order granted by the FCC for a construction permit pertaining to the application of Eugene J. Roth, trading as Mission Broadcasting Company (KONO).

Onionskin carbon copy of an itemized bill sent to John J. Herrera for services rendered by John Barron, Consulting Radio Engineers of Washington, D.C. Services rendered between March 5 through April 11, 1947 and totaled $906.05.

Onionskin carbon copy of an itemized bill sent to John J. Herrera for services rendered by John Barron, Consulting Radio Engineers of Washington, D.C. Services rendered between March 5 through April 11, 1947 and totaled $906.05.

Letter sent by D. F. Prince to John J. Herrera. Prince provides an update about the application submitted by Mr. Morales and the Petition to Amend and Remove from Hearing Docket submitted to the FCC. Prince also provides a timeline for the application process.

Letter sent by D. F. Prince to T. J. Slowie, Secretary at Federal Communications Commission in Washington, D. C. Prince has submitted an amended application for a standard broadcast station construction permit (Form 301) on behalf of Felix H. Morales.

Onionskin carbon copy of a letter sent by John J. Herrera to Vesey, Prince & Clineburg in Washington, D. C. Herrera writes that he has authorized John Barron to prepare the amended engineering data. He also comments on Felix H. Morales' preference to retain Charles L. Belfi in spite of his qualifications.

Copy of a letter John J. Herrera sent to John H. Barron in Washington, D. C. Herrera advises Barron that he hads been authorized by Felix H. Morales to proceed with the preparation of the engineering for amending the radio station permit.

Carbon copy of a letter from D. F. Prince to Felix H. Morales regarding a past due account owed by Herrera to the Estate of John H. Barron. Prince also gives an update on the pending Federal Communications Commission decision for granting the application to Houston.

Onionskin carbon copy of the letter sent by Dr. Carlos E. Castañeda to Alonso S. Perales in San Antonio, Texas. Dr. Castañeda discusses the special election for the State Senate and the possibility of John J. Herrera running as a candidate. Castañeda provides details for obtaining votes and financial support for Herrera's campaign.

Letter from D. F. Prince to John J. Herrera in Houston, Texas, dated April 1, 1947. Prince is responding to Herrera's telegram from March 31st and explains the process for amending the application for Mr. Morales' application. Prince advises that there is a possibility of a hearing for the new proposed radio frequency.

Onionskin carbon copy of a letter sent to John J. Herrera from D. F. Prince. Herrera is informed about the status of the FCC decisions regarding daytime operations on clear channel frequencies. Prince also indicates that the Morales application was still delayed.

A letter from D. F. Prince to Felix H. Morales, informing Morales that a conflicting application has been filed by John F. Cooke. Prince suggests that Morales contact Cooke and inquire about the possibility of Cooke withdrawing his application. Prince cautions Morales not to offer Cooke money to withdraw or to reimburse him for expenses. The letter also contains a brief summary of the application filed by Cooke for a radio station in Houston, Texas on April 15, 1949.

Onionskin carbon copy of a letter from D. F. Prince in Washington, D. C. to Felix Morales in Houston. Prince provided Morales with pages 41-43 of FCC Form 301 and requested that they be completed and returned in triplicate. The amended Form 301 was needed for support of the Petition to Amend and Remove from Hearing Docket.

Letter from D. F. Prince from the Law Offices of Vesey, Prince, & Clineburg in Washington, D. C., to John J. Herrera in Houston, Texas. Prince advises Herrera to make a thorough investigation of Charles L. Belfi to determine whether or not he was qualified to serve as General Manager of a radio station. Prince thinks Herrera should also authorize John H. Barron to proceed on the new frequency because of the conflict with Mexia.

Onionskin carbon copy of the letter sent by John J. Herrera to Vesey, Prince & Clineburg, Attorneys at Law. Herrera inquires if there have been any new developments in regards to the FCC application filed by Felix H. Morales.