The W. Atlee Burpee & Company records, dated circa 1873-1986, document the firm's business activities developing plant varieties, working with contract seedsmen, and marketing and selling seeds. They include seed trial records, seed contracts, sales and acccounting records, inventories, office correspondence, seed catalogs, promotional and instructional materials, advertisements and advertising reports, contest letters, daybooks, photographs, reference materials, and other items relating to the company and some of its competitors. The collection also includes Burpee family papers.

The Rockwell Kent papers measure 88.0 linear feet and date from circa 1840 to 1993 with the bulk of the collection dating from 1935 to 1961. The collection provides comprehensive coverage of Kent's career as a painter, illustrator, designer, writer, lecturer, traveler, political activist, and dairy farmer.

The papers of Aleš Hrdlička, curator in the Division of Physical Anthropology, Department of Anthropology, United States National Museum of the Smithsonian Institution, offer considerable insight into the development of physical anthropology in the first half of this century. The papers include honors bestowed on Hrdlička, autobiographical notes, correspondence with many of the leading anthropologists of the day, anthropometric and osteometric measurements and observations (forming most of the collection), extensive photographs of Hrdlička's field work, manuscripts, research materials, and "My Journeys" (essentially a diary Hrdlička kept of his field work). In addition, there is material of a personal nature. The papers date from 1875 to 1966, but the bulk of the materials date from 1903 to 1943, the time of Hrdlička's career at the USNM.

The Abraham Rattner and Esther Gentle papers measure 26.3 linear feet and date from 1891 through the 1980s. The collection documents Rattner's life and career as an artist through interviews, extensive correspondence, gallery files, studio notebooks, writings, notes, date books and diaries, photographs, and works of art.

George Sidney (1916-2002) was a film director during the Golden Age of Hollywood filmmaking (1927-1954). He spent the longest period of his career at Metro-Goldwyn-Mayer (MGM) until the 1950s. He later produced and directed films for Columbia Pictures and Paramount Pictures. He was a president of the Directors Guild of America and an avid photographer. He was the recipient of three awards from the Academy of Motion Picture Arts and Sciences (Oscar). The collection consists of photographs, photographic negatives, personal and business materials, and film. The collection also contains material created by George Sidney's uncle, George Sidney, vaudevillian and motion picture actor.

The collection documents in photographs, scrapbooks, notebooks, correspondence, stock ledgers, annual reports, and financial records, the evolution of the telegraph, the development of the Western Union Telegraph Company, and the beginning of the communications revolution. The collection materials describe both the history of the company and of the telegraph industry in general, particularly its importance to the development of the technology in the nineteenth and twentieth centuries. The collection is useful for researchers interested in the development of technology, economic history, and the impact of technology on American social and cultural life.

Papers documenting the farming and family life of the Robinson family of Prince George's County and after 1975, Charles County, Maryland. Papers documenting the farming and family of the Via family of Greene County, Virginia, Washington, D.C., Prince George's and Calvert Counties, Maryland, by 1949.

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 papers of curator, gallery director, educator, and Latin American art historian Stanton L. Catlin (1915-1997) measure 56.4 linear feet and date from 1911 to 1998 with the bulk of the material dating from 1930 to 1994. The papers are comprised of biographical material, correspondence, writings and notes, teaching and project files, professional files, research files, exhibition and subject files, printed material, and photographs.

This collection consists of 72 linear feet of the papers of Benjamin O. Davis. Included are the following types of material: programs, invitations, certificates, correspondence, published material, and photographs.