The papers of Holger Cahill (1887-1960) date from 1910 to 1993, with the bulk of the material dating from 1910-1960, and measure 15.8 linear feet. The collection offers researchers fairly comprehensive documentation of Cahill's directorship of the Works Progress/Projects Administration's (WPA) Federal Art Project (FAP) in addition to series documenting his work as a writer and art critic. Material includes correspondence, reports, artist files, scrapbooks, printed material, and photographs.

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.

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 American Art Association records measure 27.8 linear feet and date from circa 1853-1929, with the bulk of the material dating from circa 1885-1922. The records include auction and sales files, general financial and legal files, inventory and stock records, client files, printed materials, photographic materials, artwork, and the personal papers of founder Thomas Ellis Kirby.

The Edward S. Curtis papers and photographs, circa 1895-2001 (bulk 1898-1951) primarily relate to Curtis's work on his opus, the North American Indian (NAI), although other subjects are documented as well. The papers relate closely to the Edward S. Curtis papers at the University of Washington Libraries Special Collections (UW), as that collection ...

The Thomas Warren Sears Photograph Collection documents examples of the design work of Thomas Warren Sears (1880-1966), a landscape architect and amateur photographer from Brookline, Massachusetts. Sears, who was based for most of his career in Philadelphia, designed a variety of different types of landscapes ranging from private residences, schools, and playgrounds to parks, cemeteries, and urban housing developments located primarily in Pennsylvania, Maryland, and New York. In addition to some of Sears' design work, images in the collection document Sears' domestic and foreign travels, design inspirations, and family. The collection includes over 4,800 black and white negatives and glass lantern slides dated circa 1899 to 1930. While most images show private and public gardens, there are a significant number of unidentified views and views photographed in Europe during two trips he took there in 1906 and 1908. Few images are captioned or dated. In addition, there are over 50 plans and drawings, most notably for Balmuckety in Pikesville, Maryland and Reynolda in Winston-Salem, North Carolina, and 3 monographs by or about Sears.

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.

This collection includes postcards from 45 African countries. Subjects include agriculture; animals; artists; body arts; cityscapes; cultural landscapes; dance; education; expeditions; flora; industry; leaders; marketplaces; medicine; military; missionaries; music; portraits; recreation; rites and ceremonies; and transportation, among many other topics.