The research material of Connecticut artists and authors Nelson and Henry C. White, measures 4.5 linear feet and dates from circa 1851-1961. The bulk of the collection consists of Nelson C. White's correspondence, writings, and research, primarily related to J. Frank Currier and Abbott Handerson Thayer, and referencing Thomas Wilmer Dewing. Also found are the correspondence, writings, and research files of Nelson's father, Henry C. White, primarily relating to Dwight W. Tryon. Research files include artist correspondence, writings and notes, printed material, photographs of the artists, and photographs of artwork and exhibition installations.

The records of Vose Galleries of Boston measure 25.6 linear feet and date from circa 1876, 1890s-1996 with the bulk of materials dating from 1920s-1930s. Nearly 90 percent of the collection documents the gallery's handling of American paintings and portraits through incoming and outgoing business correspondence with artists, clients, galleries, and museums, including considerable correspondence with portrait artist Alfred Jonniaux and clients regarding commissioned portraits. Other materials include client files; artists' biographies; records of sales, consignments, framing, restoration, and banking, mostly from the 1940s-1960s; and scattered exhibition catalogs, newspaper clippings, and postcards. Also found is a handwritten manuscript regarding the 1876 Centennial Exhibition in Philadelphia, PA and a 1991 videotape about the Vose Galleries and its founding family.

The records of the Howard Wise Gallery in New York, and its predecessor the Howard Wise Gallery of Present Day Painting and Sculpture in Cleveland, Ohio, measure 11.4 linear feet and date from 1943-1989. Records consist of correspondence, artist files, exhibition files, business records, writings, and video recordings that document the activities of Wise's gallery in Cleveland from 1957-1961 and, to a lesser extent, his gallery in New York City from 1960-1970. Wise's activities following the closing of the Howard Wise Gallery are also found among the correspondence, artist files, business records, writings, and video recordings.

The papers of Washington, D.C. art historian, librarian, author, educator, and art consultant Marchal Landgren measure 15.3 linear feet and date from 1881 to circa 1982, with the bulk of the material dating from 1930 to 1975. Included are biographical materials, correspondence, writings and notes, professional and organization files, research projects' files, scattered personal business records, printed materials, two clippings scrapbooks, photographical materials, and scattered artwork.

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 records of the New York City gallery James Graham & Sons measure 103.2 linear feet and date from 1815, 1821, circa 1896-2011 (bulk 1950s-1980s). The collection generally documents the gallery's contemporary art department during the time in which Robert Claverhouse Graham, Sr. worked at the gallery (1940-1979); records prior to 1954 are sparse and scattered. Gallery records include artist files; correspondence; exhibition files; financial records; inventory records; printed materials; sales, loans, and consignment records; scrapbooks; and photographic materials. Also found are records from Coe Kerr Gallery regarding exhibitions.. There is a 8.0 linear foot unprocessed addition to this collection donated in 2018 that includes artists' files regarding exhibitions and photographs of works of art.

These papers include Holmes' personal and professional correspondence, including correspondence between other scientists, which was collected by Holmes in connection with his research. The correspondence mainly documents Holmes' research in American ethnology and archeology but also includes material dealing with international scientific ...

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 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.

Art dealer Leroy Ireland's research material on George Inness measures 2.0 linear feet and dates from 1916 to 2007, with the bulk of the material dating from 1960 to 1971. The collection documents Ireland's research for his book The Works of George Inness: An Illustrated Catalogue Raisonne through correspondence, research files, and photographs of artwork.