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.

Sam DeVincent loved music and art and began collecting sheet music with lithographs at an early age. Series 4: Songwriters: A "songwriter" for this series is defined as a composer, a lyricist, or both. An overview to the entire DeVincent collection is available here: Sam DeVincent Collection of Illustrated American Sheet Music.

The papers of ceramist William P. Daley measure 15.2 linear feet and date from 1905-2004 (bulk 1951-2001). The collection documents Daley's career as both artist and teacher through biographical information, correspondence, exhibition files, project files, material on workshops, seminars, and lectures, teaching files, artist files, reference files, printed material, photographs, financial files, and artwork.

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 papers of Los Angeles Abstract Classicist painter and educator Frederick Hammersley measure 35.05 linear feet and date from circa 1860-2009, bulk 1940-2009. The papers contain biographical materials, 32 diaries, family and professional correspondence, personal business and financial records, estate records, writings, graphic design projects, teaching files, printed materials, scrapbooks, photographs, and works of art. There is a 0.3 linear foot unprocessed addition to this collection donated in 2020 that includes photographs of Hammersley's family, and most significantly for research, a study in pencil and a "model for making cubes," a paper document that can be stored flat and folded into a cube shape.

The papers of realist painter, muralist, and educator Leon Kroll date from circa 1900 to 1988 and measure 8.7 linear feet. The collection documents Kroll's painting career, teaching, and active participation in numerous art organizations. Over one-half of the collection is correspondence with artists, schools, galleries, museums, patrons, arts organizations, and others. Also found are scattered biographical material, writings and notes, legal and financial records, exhibition catalogs, clippings, other printed material, photographs of Kroll and colleagues, loose drawings and nine sketchbooks.

The Joseph Cornell Study Center collection measures 196.8 linear feet and dates from 1750 to 1980, with the bulk of the material dating from 1930 to 1972. Documenting the artistic career and personal life of assemblage artist Joseph Cornell (1903-1972), the collection is primarily made up of two- and three-dimensional source material, the contents of the artists' studio, his record album collection, and his book collection and personal library. The collection also includes diaries and notes, financial and estate papers, exhibition materials, collected artifacts and ephemera, photographs, correspondence, and the papers of Robert Cornell (1910-1965) and Helen Storms Cornell (1882-1966), the artist's brother and mother.

The Leo Castelli Gallery records measure 215.9 linear feet and 0.001 GB and date from circa 1880-2000, with the bulk of the materials dating from the gallery's founding in 1957 through Leo Castelli's death in 1999. The major influence of dealer Leo Castelli and his gallery on the development of mid-to-late twentieth century modern art in America is well-documented through business and scattered personal correspondence, administrative files, exhibition files, extensive artists' files and printed materials, posters, awards and recognitions, photographs, and sound and video recordings. Also included are records for the subsidiary firms of Castelli Graphics and Castelli/Sonnabend Tapes and Films.

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 records of Midtown Galleries measure 86.82 linear feet and date from 1904 to 1997. The collection documents the operation and general administration of the business and includes artist records, exhibition material, inventories, financial records, photographs, and printed material.