Harrington was a Bureau of American Ethnology ethnologist involved in the study of over one hundred American tribes. His speciality was linguistics. Most of the material concerns California, southwestern, northwestern tribes and includes ethnological, archeological, historical notes; writings, correspondence, photographs, sound recordings, biological specimens, and other types of documents. Also of concern are general linguistics, sign language, writing systems, writing machines, and sound recordings machines. There is also some material on New World Spanish, Old World languages. In addition, there are many manuscripts of writings that Harrington sketched, partially completed, or even completed but never published. The latter group includes not only writings about anthropological subjects but also histories, ranging from a biography of Geronimo to material on the history of the typewriter. The collection incorporates material of Richard Lynch Garner, Matilda Coxe Stevenson, and others. In his field work, Harrington seems sometimes to have worked within fairly firm formats, this especially being true when he was "rehearing" material, that is in using an informant to verify and correct the work of other researchers. Often, however, the interviews with informants (and this seems to have been the case even with some "rehearings") seem to have been rather free form, for there is a considerable intertwining of subjects. Nevertheless, certain themes frequently appear in his work, including annotated vocabularies concerning flora and fauna and their use, topography, history and biography, kinship, cosmology (including tribal astronomy), religion and philosophy, names and observations concerning neighboring tribes, sex and age division, material culture, legends, and songs. The fullness of such materials seems to have been limited only by the time Harrington had to spend with a goup and the knowledge of his informants.

The National Congress of American Indian (NCAI), founded in 1944, is the oldest nation-wide American Indian advocacy organization in the United States. The NCAI records document the organization's work, particularly that of its office in Washington, DC, and the wide variety of issues faced by American Indians in the twentieth century. The collection is located in the Cultural Resource Center of the National Museum of the American Indian.

The John Canfield Ewers Papers document his wide ranging anthropological interests from early White depictions of Native Americans to the material culture of the Plains tribes through correspondence, exhibit catalogs, field notes, illustrations, lectures, maps, photocopies of archival materials, photographs, and writings. The collection includes materials relating to his numerous …

This collection contains over 37,000 35mm slides, 3,000 glass lantern slides and garden files that may include descriptive information, photocopied articles (from journals, newspapers, or books), planting lists, correspondence, brochures, landscape plans and drawings. Garden files were compiled by Garden Club of America (GCA) members for most of the gardens included in the collection. Some gardens have been photographed over the course of several decades; others only have images from a single point in time. In addition to images of American gardens, there are glass lantern slides of the New York Flower Show (1941-1951) and trips that GCA members took to other countries, including Mexico (1937), Italy, Spain, Japan (1935), France (1936), England (1929), and Scotland. A number of the slides are copies of historic images from outside repositories including horticultural and historical societies or from horticultural books and publications. The GCA made a concerted effort in the mid-1980s to acquire these images in order to increase its documentation of American garden history. Because of copyright considerations, use of these particular images may be restricted.

The Beatrice Medicine papers, 1913-2003 (bulk 1945-2003), document the professional life of Dr. Beatrice "Bea" Medicine (1923-2005), a member of the Standing Rock Sioux tribe, anthropologist, scholar, educator, and Native rights activist. The collection also contains material collected by or given to Medicine to further her research and activism interests. Medicine, whose Lakota name was Hinsha Waste Agli Win, or "Returns Victorious with a Red Horse Woman," focused her research on a variety of topics affecting the Native American community: 1) mental health, 2) women's issues, 3) bilingual education, 4) alcohol and drug use, 5) ethno-methodologies and research needs of Native Americans, and 6) Children and identity issues. The collection represents Medicine's work as an educator for universities and colleges in the United States and in Canada, for which she taught Native American Studies courses. Additionally, because of the large amount of research material and Medicine's correspondence with elected U.S. officials and Native American leaders, and records from Medicine's involvement in Native American organizations, the collection serves to represent issues affecting Native Americans during the second half of the 20th century, and reflects what Native American leaders and organizations did to navigate and mitigate those issues. Collection materials include correspondence; committee, conference, and teaching material; ephemera; manuscripts and poetry; maps; notes; periodicals; photographs; training material; and transcripts.

These records consist of the correspondence of the director of the International Exchange Service along with invoices and shipping instructions. The bulk of the correspondence relates to the exchange of printed matter between parties in the United States and abroad.

This collection consists primarily of brochures, booklets, and books cataloging single exhibitions at the National Gallery of Art, the National Collection of Fine Arts, the National Museum of American Art, and the Renwick Gallery. Also included are a few catalogs from exhibitions of SITES. There are catalogs from exhibitions staged …