The papers of art historian, collector, educator, and museum administrator John Davis Hatch measure 24.9 linear feet and date from 1790-1995. Within the papers are biographical materials; correspondence; personal business and legal documents; diaries; research, organization, and teaching files; writings; printed materials; photographs; and works of art (mostly sketches) by American artists. Research files regarding artists and specific subjects comprise the bulk of this collection.

Most of Ruth Landes's papers relate directly or indirectly to Landes's American Indian research, her work in Brazil, and her study of bilingualism. There is also a considerable amount of material that relates to her experiences (sometimes fictionalized) at Fisk University. There is only small amount of material related to her other interests. Her collection also has material of and relating to the Brazilian folklorist and journalist Edison Carneiro. There is also noteworthy material concerning Herbert Baldus, Ruth Benedict, Elmer C. Imes, Charles S. Johnson, and Robert E. Park. There is a large amount of printed and processed materials in the collection, mainly in the form of newspaper clippings and a collection of scholarly papers.

Record Unit 85, records of the Smithsonian Astrophysical Observatory, covers the years 1923-1965. Most records end by 1954, with the exception of Quarterly Progress Reports, which extend through the year 1965. Most of the documentation is of the field stations: Table Mountain, California; Montezuma, Chile; Mount St. Katherine, Egypt; and ...

The records of the Downtown Gallery date from 1824 to 1974 (bulk 1926-1969) and measure 109.56 linear feet. The records present a comprehensive portrait of a significant commercial gallery that operated as a successful business for more than forty years, representing major contemporary American artists and engendering appreciation for early American folk art. There is an unprocessed addition to this collection dating circa 1970 of a single financial/legal document.

This collection includes information about Samuel P. Langley and his colleagues, as well as documentation of Langley's work. The collection includes biographies of Langley and his assistant Charles Manly, newspaper clippings, correspondence, manuscripts regarding Langley's aircraft, photographs and drawings, work requisitions for the Aerodromes, a sketchbook, specifications and measurements for Langley's experiments, the Langley Memoirs on Mechanical Flight and the Langley "Waste Books."

The Federal Art Project, Photographic Division collection dates from circa 1920-1965, with the bulk of the records spanning the active years of the Federal Art Project (FAP), 1935-1942. The collection comprises 12.4 linear feet of mostly photographic prints and negatives that document primarily artwork produced by artists employed by the FAP. A smaller number of photographs also document other programs of the FAP, such as art classes and community centers, exhibitions by children and adults, artwork installed in public buildings, project divisions, and demonstrations of art processes by FAP artists.

Thomas Dale Stewart was a physical and forensic anthropologist and worked at the Smithsonian National Museum of Natural History from 1931 until his death in 1997. He worked under Ales Hrdlicka until 1943, became the head curator in 1960, director of the museum in 1962, and retired in 1971. Stewart's research interests included physical and forensic anthropology and archaeology, mostly in North and South America. He also worked with the F.B.I. frequently to aid in homicide investigations, and worked extensively with the U.S. Army to identify skeletal remains from the Korean War in Operation Glory. The Thomas Dale Stewart Papers primarily deal with his life and career at the Smithsonian, particularly his research projects and publications between 1931 and 1991. Materials consist mainly of correspondence, photographic material, dossiers based on writings and research projects, and administrative files.

The papers of art historian E. P. Richardson measure 28.7 linear feet and date from 1814-1996, with the bulk of the materials dating from 1921-1996. Within the papers are scattered biographical materials; acquisition files for Richardson's personal art collection; professional and personal correspondence with colleagues, art historians and critics, artists, museums, galleries, and dealers; numerous writings, including manuscripts and research files for his published books, articles, and lectures; general research notebooks and files compiled by Richardson on a wide variety of art-related topics and artists; professional and committee files; as well as a smaller amount of Constance C. Richardson's papers.

The records of the American Federation of Arts (AFA) provide researchers with a complete set of documentation focusing on the founding and history of the organization from its inception through the 1960s. The collection measures 79.8 linear feet, and dates from 1895 through 1993, although the bulk of the material falls between 1909 and 1969. Valuable for its coverage of twentieth-century American art history, the collection also provides researchers with fairly comprehensive documentation of the many exhibitions and programs supported and implemented by the AFA to promote and study contemporary American art, both nationally and abroad.

Collection consists of approximately 13,500 images (original photographs, copy prints, and film and glass plate negatives) for freight, passenger, private, and street and rapid transit cars manufactured by the Pullman Palace Car Company. The collection contains primarily early railroad Americana, including interior and exterior views of private and business cars as well as passenger and street cars. The collection is an important part of the historical record of the railroad car-building industry as well as the history of architecture and interior design.