The John Singer Sargent letters consist of 104 letters dating from 1887 to 1922. The letters provide limited insight into his later career through letters to commissioned patrons, sitters, and friends and colleagues. Topics covered include works in progress, replies to social invitations, and other general social news. Many of the letters are written to Mrs. Charles Hunter, an English friend and patron who sat for several portraits. Also found are letters from Sargent to friend Edith Blaney, whose husband was landscape artist Dwight Blaney. Additional scattered letters were written to Henry Mills Alden, Lawrence Barrett, Mrs. Baxter, a Mr. Griffith, Sir George Hunter, Mrs. Jackson, Louisa P. Loring, Henry Gurdon Marquand, Mrs. Pick, Mr. Spizer, and unidentified/illegible recepients. There are two photographs of Sargent.

The papers of medical doctor F.W. Sargent measure 0.4 linear feet and date from 1854 to 1960. Found within the papers are letters to his family with references to his son, John Singer Sargent. Also included are letters and photographs of works of art by John Singer Sargent.

The papers of Boston and Ironbound Island, Maine, painter Dwight Blaney measure 3.3 linear feet and date from circa 1883-1944, with twenty slides of a family album dated circa 1993. The bulk of the material dates from circa 1883 to the 1920s. The collection includes scattered personal papers including pencil and pen sketches by Blaney and his brother Henry Blaney; three of Blaney's notebooks on art history; printed material including exhibition catalogs for Blaney and others; a scrapbook of news clippings about John Singer Sargent and photographs of artwork by Sargent; photographs including images of Blaney and his home, John Breck and his studio, and a portrait of John Singer Sargent; and one hundred and ninety-nine glass plate negatives, primarily of Blaney's artwork and interiors of his homes. Also found are three glass plate negatives of paintings by John Singer Sargent, and one glass plate of Sargent seated on Blaney's boat painting Blaney, who is painting on the shore.

The papers of art historian, curator, and educator Patricia Hills measure 23.1 linear feet and date from circa 1900-2015, bulk 1968-2009. Central to this collection are project files documenting professional work that resulted in lectures, publications, exhibitions, art history courses on numerous artists including Alice Neel, Jacob Lawrence, May Stevens, Rudolf Baranik, and John Singer Sargent. These files and files documenting Hills's tenure at the Whitney Museum of American Art include planning documents, research files, correspondence, manuscripts and accompanying publications, as well as other printed materials. The collection also contains correspondence with art historians, artists, curators, and others, notably Lawrence Alloway, Lowery Stokes Sims, Lucy R. Lippard, T.J. Clark, Leon Golub, and Donald Kuspit; professional files documenting grants and residencies awarded and consulting work; artist and subject files; other writings; and printed material. Membership and affiliation records document Hills' service to the profession, including Women's Caucus for Art and the Visual Culture/Art History Caucus of the American Studies Association.

The Robert C. Graham collection of artists' letters measure 0.2 linear feet and dates from 1783 to 1935, with the bulk of the letters dating from 1804 to 1877. Graham, an art dealer and collector, compiled the unrelated letters of several late eighteenth-century and nineteenth-century painters such as Thomas Biddle, Thomas Doughty, G. P. A. Healy, Daniel Huntington, Henry Inman, Emanuel Leutze, Samuel F. B. Morse, Rembrandt Peale, John Singer Sargent, Thomas Sully, John Trumbull, Benjamin West, and others.

The papers of painter Harriet Blackstone date from 1870-1984 and measure 5.4 linear feet. The collection provides documentation of Harriet Blackstone's career through scattered biographical material; personal and professional correspondence, including letters from Maria Oakey Dewing, Thomas Wilmer Dewing, Alice Tisdale Hobart, Joseph Cummings Chas...

This small collection of the papers of sculptor Marion Walton measures 0.8 linear feet and dates from 1915-1976. Fifteen folders of letters written to Marion and her mother Blanche Wetherill Walton include many from artists and photographers, writers, musicians and composers, and political figures. Also found are printed materials, photographs, and a file concerning a reception for author Jonathan Daniels.

The papers of American portrait painter William Cushing Loring (1897-1959) measure 0.7 linear feet and date from 1899-1961. The majority of the collection consists of correspondence, including letters which document Loring's artistic education in Paris and London 1900-1904. Also found within the collection are letters from other Loring family members, printed materials which document Loring's artistic career, and photographs of the artist and his work.

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 wood engraver Timothy Cole date from 1883-1936, and measure 0.5 linear feet. Found within the papers are letters primarily written by Timothy Cole to the editors of Century Magazine, and letters to Cole from colleagues Gifford Beal, Alice Brown, George de Forest Brush, Kenyon Cox, David Finney, Helen C. Frick, Joseph Pennell, Caroline Powell, John Singer Sargent, and Helen M. Turner. Also found are miscellaneous writings, artwork including wood engravings and printing plates, miscellaneous clippings and a photograph of Cole and his wife.