The papers of art collectors, art patrons, and philanthropists Lawrence and Barbara Fleischman measure 4.9 linear feet and date from 1837 to 1984, with the bulk of the materials dating from 1935-1979. The papers are comprised mostly of correspondence with artists, museums, and arts organizations. Also found are scattered biographical materials, artists' autograph letters purchased by the Fleischmans, exhibition files, notes and writings, printed material, and photographs.

The papers of Henry Varnum Poor measure 12.9 linear feet and date from 1873-2001, with the bulk from the period 1904-1970. Correspondence, writings, artwork, printed material and photographs document Poor's work as a painter, muralist, ceramic artist and potter, architect, designer, writer, war artist, educator and a co-founder of the Skowhegan School of Painting and Sculpture. Also found is extensive information about the design and construction of Crow House, his home in New City, New York, commissions for other architectural projects, and his personal life.

The records of the Carnegie Institute, Museum of Art measure 265.8 linear feet and date from 1883-1962, with the bulk of the material dating from 1885-1940. The collection includes extensive correspondence between the museum's founding director, John Beatty, and his successor, Homer Saint-Gaudens, with artists, dealers, galleries, collectors, museum directors, representatives abroad, shipping and insurance agents, and museum trustees. The collection also includes Department of Fine Arts interoffice memoranda and reports; loan exhibition files; Carnegie International planning, jury, shipping, and sale records; Department of Fine Arts letterpress copy books, and a copy of the original card catalog index to these records.

The papers of art historian and museum director Wilhelm Reinhold Valentiner measure 6.9 linear feet and date from 1853 to 1977. Found within the collection are biographical materials, including information on the Lepsius and Valentiner families; correspondence with family, friends, art collectors, and art historians; seven diaries; additional writings and notes; printed materials; three clippings scrapbooks; artwork in the form of prints and woodcuts; and photographs of Valentiner and his family and friends, including two photograph albums.

The papers of rubberstamp and artistamp artist, performance artist, collector of mail art, and fine arts librarian John Held, Jr. date from 1947-2018, bulk 1973-2013, and measure 12.9 linear feet. Found within the papers are biographical material, 18 printed diaries, letters received by Held from mail artists around the world, art work consisting of artistamps designed by miscellaneous mail artists, interview transcripts, writings, project and event files, printed material, mail art sent for the Gutai Historical Survey Exhibition held at the San Francisco Art Institute in 2013, and a collection of biographical material presented by Held at a Mail Art Study Day held at the Archives of American Art in 2018.

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 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 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 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 Washburn Gallery records measure 47.9 linear feet and 4.805 gigabytes. The collection dates from 1906-2017, with the bulk of material dating from 1971-2010. Founded in 1971 by Joan Washburn, the New York gallery specializes in the work of 19th and 20th American artists, and has mounted hundreds of exhibitions in its four decade history. The collection documents the gallery's activities through administrative records, correspondence and subject files, artist files, exhibition files, art fair files, printed material, photographic material, and records from the Peridot Gallery, purchased by Washburn in 1971.