The Mating Call sub-series (1927-1929) is comprised of materials pertaining to the film's editing, legal, financial, production and direction, and story development records. Under director Lewis Milestone and producer Howard Hughes, The Mating Call was released on July 21, 1928 and starred Thomas Meighan, Renée Adorée, and Evelyn Brent. It was considered a lost film until 2016.

Editing records include multiple censor requests. Legal records include agreements for Renée Adorée and Evelyn Brent, Rex Beach’s agreement for story rights, and supporting actor contracts. The financial records are reports of domestic and international revenues. The production and direction records contain black-and-white photographic prints and a negative depicting principal and supporting cast, interior and exterior sets, and publicity images, as well as a production report ledger. The story development records include a manuscript copy of the story, a production script, and cutting and dialogue continuities.

The Front Page sub-series (approximately 1927-1939) is comprised of materials pertaining to the production process of The Caddo Company's April 4, 1931 release of The Front Page. The sub-series contains advertising and publicity, administrative, financial, legal, and production and direction, and story development records. Director Lewis Milestone, along with editor Duncan Mansfield and writers Ben Hecht, Charles MacArthur, and Bartlett Cormack helped the film earn Academy Awards nominations for Best Director and Best Picture in 1929. The black-and-white photographic prints and negatives, primarily attributed to Newton Hopcroft, depict set and production stills of the principal and supporting cast and locations in the film.

Advertising and publicity records include newspaper clippings detailing the film’s release, articles of local advertising campaigns, and publicity stills of principal and supporting cast members. Administrative records include correspondence pertaining to the editing, censorship, and distribution of the film, as well as shipping receipts. Legal records include supporting actor and domestic distribution contracts. Production and direction records include production stills of principal and supporting cast, interior and exterior sets, and a sound and production daily report ledger. The story development records include production scripts, as well as cutting continuities and dialogue scripts for domestic and international releases.

The Age for Love sub-series (1930-1932) is comprised of materials pertaining to the production process of The Caddo Company's October 17, 1931 release of The Age for Love. The sub-series includes advertising and publicity, administrative, distribution, editing, production and direction, and story development records, as well as film soundtracks. Materials include newspaper clippings, magazine reviews, leaflets, newspaper bulletins, correspondence, contracts, reports, and log books. Also included are black-and-white photographic prints and negatives depicting the film during its production, as well as set, director, and advertising images.

The Cock of the Air sub-series (1931-1932) includes newspaper clippings, publicity stills, production and direction records, financial records, and legal records pertaining to the film’s production and release on January 23, 1932.

Newspaper clippings in the sub-series depict advertising campaigns for The Cock of the Air, theatrical releases, and film reviews. Publicity stills consist of the principal cast, supporting cast, and director on set, as well as posed images of the principal cast. Production and direction records feature production logs, screenplays, production still albums, and direction stills depicting the principal cast on film sets. Financial records for the sub-series include theatrical release contracts for England and purchase orders. Legal records contain contracts for the supporting cast and correspondence regarding censorship issues. Lastly, the story development records contain a synopsis, continuities, and shooting scripts.

The Scarface sub-series (1930-1963) is comprised of materials pertaining to the production process and censorship issues of The Caddo Company's April 9, 1932 release of Scarface, also known as Scarface: The Shame of the Nation. The materials in this sub-series consist of administrative, advertising and publicity, distribution, editing, legal, and production and direction, and story development records. Types of materials include newspaper clipping bound volumes, correspondence, forewards, contracts, and reports. Also included are black-and-white photographic prints and negatives depicting the film during its production, sets, director activities, and profile images of the principal and supporting cast used for publicity.

Scarface is based on Armitage Trail's novel of the same name. The film, loosely based on Al Capone, faced a censorship battle that Howard Hughes employed in the film's promotion.

The corporate records sub-series (1924-1961) for The Caddo Company consists of newspaper clippings, administrative correspondence, actor and distribution contracts, and financial reports. Film distribution records primarily fall in this portion of the series.

Newspaper clippings in this sub-series publicize Howard Hughes’ corporate, theatrical, and personal activities. They also feature publicity for actors in his films including Billie Dove, Jean Harlow, and Ann Dvorak. Financial records include receipts and invoices for expenditures, employee payroll, film revenue summaries, inventory lists, insurance policies, company budgets, insurance policy forms, and corporate stock information. Legal records include contracts for actors, screen writers, music rights, production companies, and distribution companies for domestic and international film releases. Other corporate materials include Caddo maintained logs for aircraft, correspondence between film production companies and Hughes’ corporations, and materials for the unproduced film Rivets.