The Ward Ritchie Press collection consists primarily of papers ranging from 1928-1996, with the bulk of materials originating from 1930-1970. The collection includes job packets, typescripts, manuscripts, lectures, correspondence, photographs, ephemera, sketches, page and galley proofs, poetry, and some personal items. The "Associated Presses and Business Records" series consists of job packets, printer's overs, manuscripts, typescripts, amd mock-ups that are largely related to Ritchie's work with The Ward Ritchie Press, but also include business records relating to Anderson & Ritchie, Anderson, Ritchie & Simon, and Laguna Verde Imprenta. It also includes assorted typescripts and manuscripts that have an unknown provenance but were collected by Ritchie. The "Biographical and Personal Papers" series includes oral and performed works, personal photographs, gifted artwork, videos of birthday celebrations, and other works collected by Ritchie. The collection of oral and performed works include speeches and lectures given at Zamorano & Roxburghe Club meetings, Clark Library events, and Occidental College award ceremonies. The "Correspondence" series contains letters to noteable figures such as Lawrence Clark Powell, Gloria Stuart, Robinson Jeffers, Rockwell Kent, and Jake Zeitlin. Since Ritchie had working relationships with many of his friends, the series is composed of a mixture of business and personal correspondence. The "Subject Files" series includes collected items relating to other presses (Black Cat Press, Castle Press), universities (Caltech, Occidental, UCLA), clubs (Zamorano, Rounce & Coffin), and special collection libraries (Huntington Library, Clark Library).