The personal papers of Charles Lang Freer, the industrialist and art collector who founded the Freer Gallery of Art. The papers include correspondence, diaries, art inventories, scrapbooks of clippings on James McNeil Whistler and other press clippings, and photographs.

The Technical Reference Files comprise an artificial collection that currently contains 1,900 cubic feet of aviation and space related materials, organized in 22 subject series. File materials include photographs, press releases, clippings, correspondence, reports, and brochures, on individuals, organizations, events, and objects.

This collection contains interviews with Reimar and Walter Horten that were recorded by David Myhra.

The Lewis & Valentine Company Collection contains records of the Lewis & Valentine Company dating from 1916 to 1971 including photographs, negatives, brochures, books, trade catalogs, company papers, letters from clients, customer lists and a history of the company written by Harold Carman Lewis. Photographs document the Rodin Museum in Philadelphia, estates in Long Island, New York, and the properties of Hugh D. Auchincloss, Eugene du Pont, Walter P. Chrysler, Otto H. Kahn, F. W. Woolworth, Pierre S. du Pont (Longwood Gardens), Charles M. Schwab and Edward T. Stotesbury. This collection contains only a sampling of the records of Lewis & Valentine and should not be considered comprehensive.

The Smithsonian Institution Festival of American Folklife, held annually since 1967 on the National Mall in Washington, D.C., was renamed the Smithsonian Folklife Festival in 1998. The materials collected here document the planning, production, and execution of the annual Festival, produced by the Smithsonian Center for Folklife and Cultural Heritage (1999-present) and its predecessor offices (1967-1999). An overview of the entire Festival records group is available here: Smithsonian Folklife Festival records.

The Solon H. Borglum and Borglum family papers date from 1864 to 2002 and measure 11.5 linear feet. The collection documents Solon Borglum's personal life and his career as a sculptor specializing in Western themes through biographical material, family and general correspondence, writings and notes, research for his biography, financial and business letters, printed material, photographs and artwork.

The Lisa Chickering and Jeanne Porterfield collection documents their work as travel filmmakers, photographers, and writers from 1954-2015. Their films are an example of the travel lecture film, a genre which combined silent travelogue films with live narration. Chickering and Porterfield presented their films throughout the United States and Canada in the 1960s and 1970s before turning to freelance still photography and travel writing in the early 1980s. The audiovisual and photography collection begins with their first joint travels in the 1950s and covers a range of their professional activities through the early 2000s, mainly encompassing original travel footage, edited travelogues, and travel still photography. Supporting documentation includes film scripts, lecture recordings, personal and professional manuscripts, financial and professional records, and a substantial amount of newspaper and magazine articles which serve as a record of the press generated by and about Chickering and Porterfield.

The Thomas Warren Sears Photograph Collection documents examples of the design work of Thomas Warren Sears (1880-1966), a landscape architect and amateur photographer from Brookline, Massachusetts. Sears, who was based for most of his career in Philadelphia, designed a variety of different types of landscapes ranging from private residences, schools, and playgrounds to parks, cemeteries, and urban housing developments located primarily in Pennsylvania, Maryland, and New York. In addition to some of Sears' design work, images in the collection document Sears' domestic and foreign travels, design inspirations, and family. The collection includes over 4,800 black and white negatives and glass lantern slides dated circa 1899 to 1930. While most images show private and public gardens, there are a significant number of unidentified views and views photographed in Europe during two trips he took there in 1906 and 1908. Few images are captioned or dated. In addition, there are over 50 plans and drawings, most notably for Balmuckety in Pikesville, Maryland and Reynolda in Winston-Salem, North Carolina, and 3 monographs by or about Sears.

This collection, with bulk dates from 1950-1994, documents the life of Ralph Rinzler and his professional activities as Director of Field Programs for the Newport Folk Festival, Director of the Smithsonian Folklife Festival (formerly the Festival of American Folklife) and the Office of Folklife Programs (now the Center for Folklife and Cultural Heritage), and the Smithsonian Institution's Assistant Secretary for Public Service. Includes personal papers, business records, correspondence, notes, photographs, audiotapes and field recordings.

The collection consists of correspondence, appointment books, business records, music manuscripts, sound recordings, photographs, and ephemera documenting the activities of Duke Ellington and the management of Tempo Music, Incorporated. There is a small amount of material relating to the Ellingotn family.