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 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.