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 James D. Smillie and Smillie family papers measure 5.6 linear feet and date from 1853 to 1957. The collection consists of the papers of four members of the Smillie family including James Smillie, his sons James David and George Henry Smillie, and George's wife, Helen 'Nellie' Jacobs Smillie. The majority of the papers are those of James D. Smillie, comprised of correspondence, forty-five daily diaries, a scrapbook, printed materials, and one etching. The papers of James Smillie consist of biographical materials and writings. The George Smillie papers include biographical materials, scattered correspondence, a scrapbook, printed materials, and photographs. The Helen Jacobs Smillie papers include corrrespondence and photographs. Also found are scattered materials relating to other family members, mostly the children of Helen Jacobs and George Smillie.

The Victor D. Spark papers measure 22.2 linear feet and date from circa 1830 to 1983, with the bulk of the material from 1930 to 1970. The papers document Spark's career as a New York City art dealer and appraiser who was most active from World War II through the 1970s, focusing on Old Masters paintings and 19th and early 20th century American art. Found within the papers are biographical materials, artist files, client files, financial records, legal records, printed material, and photographs.

The papers of Hudson River School painter Jervis McEntee measure 1.6 linear feet and date from 1796 and 1848 to 1905. Letters from close friends and family members to McEntee include many from his mentor Frederic Edwin Church, and fellow artists Samuel Putnam Avery, George Henry Boughton, Sanford Gifford, Richard Henry, Eastman Johnson, Elizabeth B. Stoddard, John Ferguson Weir, Worthington Whittredge, and others. Papers relating to the McEntee family include obituaries, a family genealogy, and letters from and regarding family members. There are also papers relating to the Vaux family (McEntee's brother-in-law's family) and American architect and landscape artist Calvert Vaux, who designed a studio for McEntee. Of special significance are five volumes of diaries dating from 1872 through 1890 which provide a detailed depiction of the American art world in the 1870s and 1880s.

The papers of art historian, curator, and professor Robert Rosenblum measure 38.3 linear feet and 1.17 GB and date from circa 1927 to 2009, with the bulk dating from 1950 to 2006. They include biographical material, extensive personal and professional correspondence; lectures, writings, and writing project files by Rosenblum and others; exhibition files; research reference files; teaching files; personal business records; printed and digital material; photographs; and artwork.

The papers of feminist art historian and educator Linda Nochlin measure 31.2 linear feet and 3.9 gigabytes and date from circa 1876, 1937 to 2017. The collection is comprised of biographical materials; date books and notebooks; correspondence; writing project files that include material on Gustave Courbet and realism, bathers and the body, essays and lectures on 19th century art among other topics, artists, and smaller writing projects; professional files containing material on conferences and fellowships; teaching files detailing courses taught by Nochlin at New York University Institute of Fine Arts and other institutions; printed materials; artwork; and photographic materials that document Nochlin and her relationships with family, colleagues and friends, and artists.

The records of Owen Gallery measure 9.4 linear feet and 0.093 GB and date from 1929-2010, bulk 1980-2010. The gallery, which operated from 1986 to 2009 in New York, specialized in late nineteenth and early twentieth century American art with an emphasis on The Eight, Ashcan, and early American modernism. Michael Owen and James Yost owned and directed the gallery. Found within the records are exhibition files; inventory and sales records; printed and digital material; and records regarding painter Yasuo Kuniyoshi. Material dating from before 1986 when the gallery was established is research related to an artwork's provenance.

The papers of William Couper date from 1872 through 1971 with the bulk of the material dated 1872 through 1908. The collection consists of 0.9 linear feet of letters, photographs, and printed material that document William Couper's career as a sculptor and his family life. Letters are from Couper and his wife to his parents, and to his brother John, discussing family matters, his art training, his travels, and his work in New York. There are also several letters from his father-in-law, sculptor Thomas Ball.

The papers of New York artist, critic, historian, writer, art consultant and curator Walter Pach, measure 20.7 linear feet and date from 1857-1980. The collection documents Pach's promotion of modernism through his role in the landmark 1913 Armory Show, his relationships with artists and art-world figures and his extensive writings on art. Records include biographical material, correspondence with family, friends and colleagues including noted artists, handwritten and edited versions of manuscripts by Pach, diaries and journals, business records, printed material, scrapbooks, sketchbooks and artwork by Pach and others, and photographs of Pach and his family, friends, and colleagues. The collection also includes 12 linear feet of selections from Walter Pach's library.

The Samuel J. Wagstaff papers, circa 1932-1985 comprise 6.4 linear feet of correspondence, writings, miscellaneous records, printed material, and photographs documenting Wagstaff's professional and personal relationships with artists and photographers, his career as an art curator, and his position as an important collector of paintings and photographs. Correspondence with artists and others such as curators, arts organizations, galleries, and museums, reflects the diversity of contemporary American art and includes individuals associated with the abstract expressionist, Fluxus, pop, earth, conceptual, and minimalist art movements.