The papers of art collectors Rita and Daniel Fraad measure 3.3 linear feet and date from 1926 to 1997. The collection consists of art documentation files that reflect their American art collecting activities. Found in the files are any combination of the following materials: correspondence, sales receipts, treatment reports and photographs, loan agreements, facilities reports, exhibition and auction catalogs, clippings, photographs, transparencies, and slides.

The papers of New York art dealer, critic, and author Martin Birnbaum measure 3.2 linear feet and date from 1862-1967, with the bulk of the material dating from 1920-1967. The papers document Birnbaum's association with the firm of Scott & Fowles, the lives and activities of his friends and colleagues, and his literary work, through biographical material, correspondence, writings and notes, business records, printed material, a scrapbook, scattered artwork, and photographs of Birnbaum, friends and colleagues, and artwork.

Photographs relating to Native Americans or frontier themes, including portraits, expedition photographs, landscapes, and other images of dwellings, transportation, totem poles, ceremonies, infants and children in cradleboards, camps and towns, hunting and fishing, wild west shows, food preparation, funeral customs, the US Army and army posts, cliff dwellings, and grave …

These records document the governance and programmatic activities of the Museum of the American Indian/Heye Foundation (MAI) from its inception in 1904 until its sublimation by the Smithsonian Institution in 1990. The types of materials present in this collection include personal and institutional correspondence, individual subject files, minutes and annual reports, financial ledgers, legal records, expedition field notes, research notes, catalog and object lists, publications, clippings, flyers, maps, photographs, negatives and audio-visual materials. These materials span a varied range of subjects relating to the activities of the museum which are more fully described on the series level.

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 papers of lithographer, educator, and author Bolton Coit Brown measure 1.7 linear feet and date from 1882 to 1987 with the bulk of the material dating from 1882 to 1936. Found within the papers are biographical material; extensive personal correspondence with family members and friends; writings, including drafts of Art of Art Study and Lithography Since Whistler; and printed material.

The records of New York City Kraushaar Galleries measure 106.3 linear feet and 0.181 GB 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. There is a 6.0 linear foot unprocessed addition to this collection donated in 2022 that includes correspondence with artists, galleries, organizations and individuals regarding works of art, filed alphabetically by year. Materials date from circa 1959-1999, with the bulk from 1990-1999.

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 papers of art historian E. P. Richardson measure 28.7 linear feet and date from 1814-1996, with the bulk of the materials dating from 1921-1996. Within the papers are scattered biographical materials; acquisition files for Richardson's personal art collection; professional and personal correspondence with colleagues, art historians and critics, artists, museums, galleries, and dealers; numerous writings, including manuscripts and research files for his published books, articles, and lectures; general research notebooks and files compiled by Richardson on a wide variety of art-related topics and artists; professional and committee files; as well as a smaller amount of Constance C. Richardson's papers.

The collection comprises 29 linear feet of records that document the day-to-day administration of the Robert Schoelkopf Gallery from 1962 to 1991, with additional items predating the founding of the gallery from 1851 to 1961. The collection records artist and client relations, exhibitions, and daily business transactions through artist files, correspondence, printed matter, and photographic material.