The papers, 1878-1964 (20.5 linear feet) of museum curator, director, and art scholar William Mills Ivins (1881-1961) consist of correspondence, writings, notes, photographs, and Ivins family papers. Ivins was Curator of Prints, 1916-1946, Assistant Director, 1933-1938, and Acting Director, 1938-1940 at the Metropolitan Museum of Art. The collection contains professional and personal correspondence with art historians, art dealers, museum curators, print and book collectors, and artists concerning the history of print making, book design and illustration, print collectors and collecting, exhibitions, and museum administration. Also found are Ivins' published and unpublished writings and lectures, and notes. The collection contains some Ivins' family papers including family correspondence, genealogies, and photographs.

The records of the Downtown Gallery date from 1824 to 1974 (bulk 1926-1969) and measure 109.56 linear feet. The records present a comprehensive portrait of a significant commercial gallery that operated as a successful business for more than forty years, representing major contemporary American artists and engendering appreciation for early American folk art. There is an unprocessed addition to this collection dating circa 1970 of a single financial/legal document.

The papers of New York editor and art critic Thomas Hess measure 10.0 linear feet and date from 1939 to 1978. The collection includes biographical materials, correspondence, extensive writings and notes, artists and subject files that also include recorded conversations with artists and others, printed materials, photographic materials, and artwork.

The records of New York City Kraushaar Galleries measure 91.9 linear feet and date from 1877 to 2006. Three-fourths of the collection documents the gallery's handling of contemporary American paintings, drawings, and sculpture through correspondence with artists, private collectors, museums, galleries, and other art institutions, interspersed with scattered exhibition catalogs and other materials. Also included are John F. Kraushaar's estate records; artists' files; financial ledgers documenting sales and gallery transactions; consignment and loan records; photographs of artwork; sketchbooks and drawings by James Penney, Louis Bouché, and others; and two scrapbooks.

The records of the National Arts Club measure 32.1 linear feet and date from 1898 to 1960. The collection documents the founding of the club, and it's governance, administration, exhibitions, and social activities

The records of Milch Gallery measure 42.5 linear feet and date from 1911-1995. Edward Milch (1865-1953) opened the Edward Milch Gallery in New York City. In 1916, he formed a partnership with his brother Albert Milch (1881-1951), a gilder and framer, creating E. & A. Milch, Inc., a gallery specializing in American art. Harold C. Milch (1904-1981), Albert's son, was appointed a partner in 1944 and continued the business until his death. Business records of Milch Gallery, 1911-1968, include correspondence, sales records, inventories, financial records, printed matter, photographs, and legal documents. Later additions to the records date from 1922-1995 and include correspondence; artists' files; financial, sales, and stock records; printed material; and photographs.

The Washburn Gallery records measure 47.9 linear feet and 4.805 gigabytes. The collection dates from 1906-2017, with the bulk of material dating from 1971-2010. Founded in 1971 by Joan Washburn, the New York gallery specializes in the work of 19th and 20th American artists, and has mounted hundreds of exhibitions in its four decade history. The collection documents the gallery's activities through administrative records, correspondence and subject files, artist files, exhibition files, art fair files, printed material, photographic material, and records from the Peridot Gallery, purchased by Washburn in 1971.

Manuscript and printed textual material, photographic prints and negatives, slides, audio tapes, film, original and reproduction artwork, maps, scrapbooks, and historical and natural artifacts related to the history of African exploration and natural history, dating primarily from the nineteenth and twentieth centuries. Includes correspondence, drafts of publications, diaries, account books, ephemera, posters, newsclippings, biographies, memoirs, portraits, and the former personal property of selected explorers, big game hunters, missionaries, pioneers, and naturalists in Africa.

The records of the American Federation of Arts (AFA) provide researchers with a complete set of documentation focusing on the founding and history of the organization from its inception through the 1960s. The collection measures 79.8 linear feet, and dates from 1895 through 1993, although the bulk of the material falls between 1909 and 1969. Valuable for its coverage of twentieth-century American art history, the collection also provides researchers with fairly comprehensive documentation of the many exhibitions and programs supported and implemented by the AFA to promote and study contemporary American art, both nationally and abroad.

The Frank K. M. Rehn Galleries records measure 21.8 linear feet and are dated 1858-1969 (bulk 1919-1968). The records consist mainly of business correspondence with collectors, artists, museums and arts organizations, colleagues, and others. A small amount of Frank K. M. Rehns personal correspondence and a few stray personal papers of individual artists are interfiled. Also included are financial records, scrapbooks, printed matter, miscellaneous records, and photographs documenting most of the history of a highly regarded New York City art gallery devoted to American painting.