The Frank K. M. Rehn Galleries records measure 21.8 linear feet and are dated 1858-1969 (bulk 1919-1968). The records consist mainly of business correspondence with collectors, artists, museums and arts organizations, colleagues, and others. A small amount of Frank K. M. Rehns personal correspondence and a few stray personal papers of individual artists are interfiled. Also included are financial records, scrapbooks, printed matter, miscellaneous records, and photographs documenting most of the history of a highly regarded New York City art gallery devoted to American painting.

The papers of the artist Gene Davis measure 17.7 linear feet and date from 1920-2000, with the bulk of materials dating from 1942-1990. Papers document Davis's personal life and his career as an artist and educator, as well as his career as a journalist in the 1940s and 1950s, through biographical materials, correspondence, interviews, business records, estate records, writings by and about Gene Davis, printed materials concerning Davis's art career, personal and art-related photographs, and artwork by Davis and others.

The collection consists of correspondence (both of Nicola Tesla and Kenneth Swezey), copies of patents, articles, pamphlets, brochures, stamps, newsletters, and manuscripts, from 1890-1972 collected and assembled by Swezey.

The records document the development and use of Reddy Kilowatt, a cartoon figure trademark created in 1926 by Ashton B. Collins, Sr. More than 150 investor-owned electric utilities in the United States and at least twelve foreign countries licensed the use of the Reddy Kilowatt trademark. The records include a wide range of textual and visual materials and sound and moving image recordings.

Publicity photographs of musicians and entertainers, mostly jazz musicians, such as Duke Ellington, Louis Armstrong, Miles Davis, and Dizzy Gillespie, but including many rock and even a few classical performers. The collection also contains tape recorded radio interviews conducted between 1970 and 2003. In addition there are posters relating to musical performances.

Manuscript and printed textual material, photographic prints and negatives, slides, audio tapes, film, original and reproduction artwork, maps, scrapbooks, and historical and natural artifacts related to the history of African exploration and natural history, dating primarily from the nineteenth and twentieth centuries. Includes correspondence, drafts of publications, diaries, account books, ephemera, posters, newsclippings, biographies, memoirs, portraits, and the former personal property of selected explorers, big game hunters, missionaries, pioneers, and naturalists in Africa.

The papers of artist Ellen Lanyon measure 62.6 linear feet and date from circa 1880-2014, bulk 1926-2013. Biographical material; correspondence; interviews; writings; journals; project files; teaching files; exhibition files; personal business records; printed and broadcast material; scrapbooks; photographic material; artwork; sketchbooks; as well as sound and video recordings and electronic records, provide a comprehensive view of Lanyon's career and of art circles in Chicago and New York. Correspondence with artists and friends make up a significant portion of the collection. Project and exhibition files reflect her professional and artistic career. Thousands of slides and photographs document her life and artwork over seven decades, and over seventy sketchbooks are filled with student sketches, portraits of friends and family, and preliminary drawings.

The papers of architect and painter Eric Gugler measure 34.4 linear feet and date from 1889-1977. Found within the papers are biographical materials, including papers relating to the Gugler family, personal and business correspondence, writings, project files for commercial and residential commissions, personal business records, photographic materials, including 180 glass plate slides, and artwork.

The records of New York City Kraushaar Galleries measure 91.9 linear feet and 0.181 GB and date from 1877 to 2006. Three-fourths of the collection documents the gallery's handling of contemporary American paintings, drawings, and sculpture through correspondence with artists, private collectors, museums, galleries, and other art institutions, interspersed with scattered exhibition catalogs and other materials. Also included are John F. Kraushaar's estate records; artists' files; financial ledgers documenting sales and gallery transactions; consignment and loan records; photographs of artwork; sketchbooks and drawings by James Penney, Louis Bouché, and others; and two scrapbooks.

The Bobcat Company Records document a post-war invention process and American manufacturing system through the case study of a dynamic machine, the Bobcat skid-steer loader. The records focus primarily on Bobcat's products, marketing, and advertising through product literature, photographs, advertisements, posters, newsletters, and audiovisual materials.