The records of the Richard York Gallery, a New York gallery specializing in American art from early 1800s to 1950, measure 79.3 linear feet and date from circa 1865-2005, with the bulk of the material dating from 1981 to 2004. Three-fourths of the records are artists' artwork files, documenting the sale and consignment of nearly 6,500 works of art. The gallery's activities are also recorded through correspondence, client files, gallery invoices, inventories, business and financial records, printed materials, scrapbooks, photographic materials of artwork, and estate records for the John Marin estate and Sergio Stella estate (Joseph Stella). An addition of 10.2 linear feet, dated circa 1865 to 2005, includes artists' files arranged alphabetically containing printed material, clippings, exhibition announcements, and scattered correspondence and financial documents.

The Untermyer Family Slide Collection includes 119 glass 35mm slides documenting the grounds of Samuel Untermyer's estate, Greystone. In addition to general garden views, the images depict architectural features, vistas from the property, and interior shots of Greystone's greenhouse. The slides are not captioned or dated. The photographer was Samuel Untermyer II, the grandson of Samuel Untermyer.

The Richard Marchand Historical Postcard Collection contains approximately 1,200 35mm slide reproductions of postcard images depicting early twentieth century architectural and garden views of over 600 private estates throughout the United States. The collection includes views of estates owned by popular movie stars of the 1920s and 1930s, including Charlie Chaplin, Mary Pickford, Douglas Fairbanks, Claudette Colbert and Buster Keaton.

The Hollerith Family Collection includes approximately 2,200 35mm slides dating from 1952 to 1980 that document the horticultural interests and travels of sisters Virginia and Nan Hollerith, members of the Georgetown Garden Club in Washington, D.C. The images primarily show private and public gardens, plantations, and historic sites in the mid-Atlantic and the southeast regions of the United States. Included in the collection are slides documenting the activities of the Georgetown Garden Club and various floral arrangements.

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.

The J. Horace McFarland Collection includes over 3,100 photographic images of private and public gardens throughout the United States, as well as some from foreign countries, dating from 1899 to 1963. Many of these images, generated for Mount Pleasant Press (later the J. Horace McFarland Company), were used to illustrate trade catalogs published by the firm as well as journal and newspaper articles. The collection also contains color records that were used as reference aids during the printing process, plant patents, and various publications of the McFarland Company.

Large collection of photographs, picture postcards, printed ephemera, and music related to the brass band movement in the United States: includes 8 ambrotypes, 36 tintypes, 59 stereographs, 66 cabinet prints, 90 cartes-de-visite, 150 large photoprints, and 874 picture postcards; also posters, concert programs, instrument manufacturers' advertisemem...

The collection contains the project design records of Rudy J. Favretti. , a landscape architect and professor noted for his extensive work in historical restoration of gardens, parks, and landscapes. He donated his collection of garden design files, plans, and images to the Smithsonian's Archives of American Gardens in March 2011.

The Historic Gardens Stereograph Collection includes 807 stereographs that depict various public gardens, parks, and tourist attractions throughout the United States, with an emphasis on features related to horticulture and landscape design, including plants, garden furniture, and topiaries. Most, but not all views, show exterior features. A number of stereographs indicate the photography studio on the recto or verso, as well as a series or image number. Many include a brief caption; some include a lengthy description on the verso. Few are dated.

A collection of approximately 28,000 glass plate negatives showing views of a variety of subjects.