The Walt Kuhn Family papers and Armory Show records measure 33 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. An unprocessed addition of 2.1 linear feet with material dating from 1894-1984 is comprised of personal and professional correspondence, assorted printed material, photographic material of Kuhn and his artwork, and several artifacts including a make-up box, clown cloak, and three copper printing plates of Kuhn's paintings.

The papers of painter Lily Emmet Cushing date from 1929 to 1972 and measure 4.0 linear feet. Found within the papers are biographical material; letters from friends including Henri Bernstein, Alfred M. Frankfurter, Katharine Graham, Nancy Kefauver, and Walt Kuhn; personal business records including financial material concerning the Maynard Walker Gallery; notes and writings; art work; printed material; and photographs.

The Kennedy Galleries Miscellaneous Records date from 1864 - circa 1983 and measure 1.28 linear feet. These scattered records were compiled by gallery owner Martha Fleischman and relate to art collections and artists historically represented by or associated with the gallery. The collection includes a few letters, one essay, reports, ledger pages, a certificate, printed materials, and photographs of artists and artwork, particularly artwork by Walt Kuhn.

Primarily exhibition catalogs for modernist art exhibitions held in New York City during the first two decades of the twentieth century. Also included are catalogs for Boston exhibitions, mainly pre-1900, and a few other locales; exhibition announcements; gallery publications; and other printed material.

The Elmer Livingston MacRae papers related to the Association of American Painters and Sculptors, Inc., (AAPS) measure 1.8 linear feet and date from 1899 to circa 2013, with the bulk of the material dating from 1912-1916. Elmer Livingston MacRae served as Treasurer of the AAPS when the association organized the International Exhibition of Modern Art, also known as the Armory Show of 1913. The bulk of this collection concerns MacRae's involvement with the AAPS and the Armory Show and includes administrative files, correspondence, exhibition files, financial records, printed materials, and artifacts.

The papers of artist and art patron Dorothea A. Dreier measure 2.6 linear feet and date from 1881-1941, with the bulk of the material dating from 1887-1923. The papers document the life and work of Dorothea Dreier and also contain the papers of and about members of her immediate family, particularly her sisters, Mary and Katherine Dreier, and Margaret Dreier Robins. Found are correspondence, printed materials, legal and financial records, photographs, and one sketchbook by Dreier.

The papers of southwest painter and illustrator Ernest Blumenschein measure 2.1 linear feet and date from 1873-1964. The collection documents Blumenschein's artistic career, his relationship with his wife and daughter, his love of the American southwest, and his involvement in the art community of Taos, New Mexico. Found are biographical materials, personal and professional correspondence, scattered personal business records, writings, a large amount of juvenilia artwork, and photographs of artwork.

The Ira and William Glackens papers, circa 1900-1990, measure 2.3 linear feet. The collection consists primarily of the papers of Ira Glackens relating to the artwork of his father, William Glackens, but also contains scattered correspondence of William and his wife Edith, including letters from Albert Barnes. Ira Glackens' papers include books written by Ira; exhibition catalogs and clippings about William and others; photographs of the Glackens family and friends, of Ira, and of the Glackens residence; and an audio recording of William Glackens' remarks upon accepting an award at the Carnegie International Exhibition in 1936. There are also records of the Sansom Foundation, which was set up by Ira Glackens and his wife Nancy.

The Chester Beach papers measure 7.32 linear feet and date from 1846 to 1999, with the bulk ot the material dating from circa 1900 to 1999. The work and professional activities of Beaux Arts sculptor Chester Beach (1881-1956) and his family's efforts to exhibit and sell work from the estate are documented by project files, business records, correspondence, scrapbooks, printed material, and photographs. The papers also include many artist-designed Christmas cards sent and received by the Beach family, and artwork by Chester Beach and others.

The Library of Congress Copyright Deposit Collection is comprised of 2,335 photomechanical reproductions of works by 741 artists (mostly American). The large-format prints, deposited with the Library of Congress for copyright between 1890 and 1945, represent a broad range of nineteenth- and twentieth-century American art.