The papers of New York painter and art critic William Anderson Coffin date from 1886-1924 and measure 1.6 linear feet. Found within the papers are scattered biographical materials and correspondence, project files for the Pan-American Exposition in Buffalo, the American Artist's Committee of One Hundred, and the exhibition of works by American Artists at the Luxembourg Museum in Paris, three additional scrapbooks, printed material, and photographs.

The Richard Murray research material regarding mural painting in the United States measures 20.5 linear feet and dates from 1896 to 2006 with the bulk of the material dating from 1970 to 2006. The collection is comprised of Murray's extensive research files, scattered writings, and photographic materials for his life-long research on mural painting in the United States.

The papers of painter and muralist Daniel Putnam Brinley and his wife, linguist and writer Kathrine Sanger Brinley, date from 1879 to 1984 and measure 14.3 linear feet. The Brinleys' careers and lives are documented in biographical materials, as well as extensive correspondence with one another, family, friends, art galleries, organizations, publishers, and others. Also found within the papers are writings by both, including 16 diaries (1 by Daniel Putnam Brinley and the rest by Kathrine), essays, manuscripts, typescripts, notes and notebooks, poetry, and various other writings. There are mural commission files, files for organizations of which the Brinleys were members, financial and legal records, exhibition catalogs, news clippings, and other printed material. Also found are photographs of the Brinleys, family, friends, travels, and artwork, and six sketchbooks and original artwork by Daniel Putnam Brinley.

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.

The records of the Carnegie Institute, Museum of Art measure 265.8 linear feet and date from 1883-1962, with the bulk of the material dating from 1885-1940. The collection includes extensive correspondence between the museum's founding director, John Beatty, and his successor, Homer Saint-Gaudens, with artists, dealers, galleries, collectors, museum directors, representatives abroad, shipping and insurance agents, and museum trustees. The collection also includes Department of Fine Arts interoffice memoranda and reports; loan exhibition files; Carnegie International planning, jury, shipping, and sale records; Department of Fine Arts letterpress copy books, and a copy of the original card catalog index to these records.

The Albert Duveen collection of artists' letters and ephemera measures 1.1 linear feet and dates from 1807 to 1946. Unrelated letters written by over 170 mostly 19th and early 20th century American artists are found in this compiled collection of art critic, dealer, and collector Albert Duveen. Additional ephemera includes printed material and photographs of artwork.

The collection of artists' letters compiled by Mary and John McGuigan Jr. measure 0.6 linear feet and date from 1794-1938. The collection is comprised of a group of letters, writings, and signed documents to and from a variety of artists, art administrators, art critics, historians, and art-related organizations assembled from multiple sources. It also includes associated printed material with some documents and a few photographs, including carte de visites and cabinet cards.

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 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.

Primarily war-related posters.