The Leo Castelli Gallery records measure 215.9 linear feet and date from circa 1880-2000, with the bulk of the materials dating from the gallery's founding in 1957 through Leo Castelli's death in 1999. The major influence of dealer Leo Castelli and his gallery on the development of mid-to-late twentieth century modern art in America is well-documented through business and scattered personal correspondence, administrative files, exhibition files, extensive artists' files and printed materials, posters, awards and recognitions, photographs, and sound and video recordings. Also included are records for the subsidiary firms of Castelli Graphics and Castelli/Sonnabend Tapes and Films.

These records document the tenures of Frank A. Taylor, John C. Ewers, and Robert P. Multhauf as Directors of the Museum of History and Technology (NMHT); of Daniel J. Boorstin, Brooke Hindle, and Roger G. Kennedy as Directors of the National Museum of History and Technology; and of Roger G. Kennedy as Director of the National Museum of Am...

The J. Horace McFarland Collection includes over 3,100 photographic images of private and public gardens throughout the United States, as well as some from foreign countries, dating from 1899 to 1963. Many of these images, generated for Mount Pleasant Press (later the J. Horace McFarland Company), were used to illustrate trade catalogs published by the firm as well as journal and newspaper articles. The collection also contains color records that were used as reference aids during the printing process, plant patents, and various publications of the McFarland Company.

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, which dates from 1926-1986, documents the output of Moses Asch through the various record labels he founded and co-founded, and includes some of his personal papers. The Asch collection includes published recordings, master tapes, outtakes, business records, correspondence, photographs, and film.

The Scurlock photographic studio was a fixture in the Shaw area of Washington, D.C. from 1911 to 1994, and encompassed two generations of photographers, Addison N. Scurlock (1883-1964) and his sons George H. (1920- 2005) and Robert S. (1916-1994). Subseries 4.6 consists of black and white silver gelatin negatives. An overview to the entire Scurlock collection is available here: Scurlock Studio Records

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.

The Archival collections of the National Association of Civilian Conservation Corps Alumni (NACCCA) donated in 2006. The Civilian Conservation Corps (CCC), created as part of the New Deal legislation initiated by President Franklin D. Roosevelt in 1933, was a public work relief program for unemployed men designed to reduce high unemployment during the Great Depression. The CCC carried out a broad natural resource conservation program on national, state, and municipal lands from 1933 to 1942. This collection contains papers, photographs, and ephemera collected and created by alumni of the CCC and donated to the NACCCA archives.

This collection is comprised of photographic and manuscript materials, primarily created by Eliot Elisofon to document his travels and work. The images portray many aspects of African life and culture including agriculture, wildlife, archaeology, architecture, art and artisans, children, cityscapes and landscapes, leaders, markets, medicine, recreation, ritual and celebration, and transportation. The manuscript materials include correspondence, essays, clippings, puobligations, notes, research, and itineraries.

The Technical Reference Files comprise an artificial collection that currently contains 1,900 cubic feet of aviation and space related materials, organized in 22 subject series. File materials include photographs, press releases, clippings, correspondence, reports, and brochures, on individuals, organizations, events, and objects.