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.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Express forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

The papers of art critic, editor, and gallery director Sidney Woodward date from 1823 to 1963, bulk 1915-1932, and measure 3.5 linear feet. The majority of the collection consists of personal and professional correspondence and collected letters that pertain to Woodward's relationships with various artists, galleries, and arts organizations. Also included in this collection are two biographical documents; lecture notes and collected writings; printed material including books relating to the topic of art, exhibition catalogs, and newspaper clippings; a few personal photographs and reference photographs of paintings; and scrapbooks containing newspaper clippings, art reproductions, and printed material from the Casson Galleries.

The Walt Kuhn Family papers and Armory Show records measure 31 linear feet and date from 1859 to 1984, with the bulk of material dating from 1900 to 1949. Papers contain records of the legendary Armory Show of 1913, also known as the International Exhibition of Modern Art, which introduced modern European painting and sculpture to the American public. Papers also contain records of the Association of American Painters and Sculptors (AAPS), the artist-run organization that mounted the Armory Show; records of the New York artists' clubs the Kit Kat Club (founded 1881) and the Penguin Club (founded 1917); and the personal and family papers of New York artist Walt Kuhn (1877-1949), one of the primary organizers of the Armory Show.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Real Estate forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

The Balcomb and Gertrude Greene papers, circa 1880s-2009, bulk circa 1905-1990, measure 9.8 linear feet. Balcomb Greene's career as a painter, educator, and writer - and to a lesser extent his personal life - is documented by biographical material, letters, subject files,writings, artwork, audio-visual recordings, printed material, and photographs. Documentation about sculptor Gertrude Greene, from 1926 until her death in 1956, consists of printed material, photographs, two letters to her, and a brief handwritten list of paintings and constructions.

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 collection documents the Fuller Brush Company founded by Alfred C. Fuller in 1906.

The collection documents in photographs, scrapbooks, notebooks, correspondence, stock ledgers, annual reports, and financial records, the evolution of the telegraph, the development of the Western Union Telegraph Company, and the beginning of the communications revolution. The collection materials describe both the history of the company and of the telegraph industry in general, particularly its importance to the development of the technology in the nineteenth and twentieth centuries. The collection is useful for researchers interested in the development of technology, economic history, and the impact of technology on American social and cultural life.

The records of the Architectural League of New York measure 114.9 linear feet and date from 1880s-1974 (bulk 1927-1968). The League's mission "to advance the art of architecture" is documented through administrative and business records, committee records and officers' files, exhibition files, records of functions and events, correspondence, publicity files, photographs, lantern slides, and 16 scrapbooks.