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.

The collection is comprised of digital surrogates previously available on the 21 rolls of microfilm described in the NARA publication M1055. These digital surrogates reproduced the records of the Assistant Commissioner for the District of Columbia, Bureau of Refugees, Freedmen, and Abandoned Lands, 1865–69. The records consist of 42 bound volumes and 18 feet of unbound documents. The bound volumes include letters and endorsements sent, registers of letters received, and special orders issued. The unbound letters consist primarily of letters and reports received.

The Hollerith Family Collection includes approximately 2,200 35mm slides dating from 1952 to 1980 that document the horticultural interests and travels of sisters Virginia and Nan Hollerith, members of the Georgetown Garden Club in Washington, D.C. The images primarily show private and public gardens, plantations, and historic sites in the mid-Atlantic and the southeast regions of the United States. Included in the collection are slides documenting the activities of the Georgetown Garden Club and various floral arrangements.

The collection is comprised of digital surrogates previously available on the 21 rolls of microfilm described in NARA publication M1902. These digital surrogates reproduced the records of the District of Columbia field offices of the Bureau of Refugees, Freedmen, and Abandoned Lands, 1865–1870. Some pre-Bureau records dated 1863 and 1864 are included. These records consist of bound volumes and unbound records, containing materials that include letters and endorsements sent and received, monthly reports, registers of marriages, and employment registers.

The collection documents the creative, technical and political aspects of managing WANN Radio Station in Annapolis, Maryland during the mid-Twentieth Century. Key areas of research include black radio stations; Annapolis African American communities; marketing to Black communities; political activism through media; Black-Jewish community relationships; church, community and media activism.

This collection consists of the archives of Giuseppe M. Bellanca and his company, including the following types of mediums: drawings, stress analysis tests, reports, photographs/negatives, documents, correspondence, patent information, newspaper clippings, business records, and financial statements.

The Walt Kuhn Family papers and Armory Show records measure 33 linear feet and date from 1859 to 1984, with the bulk of material dating from 1900 to 1949. Papers contain records of the legendary Armory Show of 1913, also known as the International Exhibition of Modern Art, which introduced modern European painting and sculpture to the American public. Papers also contain records of the Association of American Painters and Sculptors (AAPS), the artist-run organization that mounted the Armory Show; records of the New York artists' clubs the Kit Kat Club (founded 1881) and the Penguin Club (founded 1917); and the personal and family papers of New York artist Walt Kuhn (1877-1949), one of the primary organizers of the Armory Show. An unprocessed addition of 2.1 linear feet with material dating from 1894-1984 is comprised of personal and professional correspondence, assorted printed material, photographic material of Kuhn and his artwork, and several artifacts including a make-up box, clown cloak, and three copper printing plates of Kuhn's paintings.

The papers document the life and work of William R. Hutton, a civil engineer during the late 1800s to the early 1900s. Materials include diaries, notebooks, correspondence, letterpress copy book, printed materials, publications, specifications, photographs, drawings, and maps that document the construction of several architectural and engineering projects during this period. Most notable are the records containing information related to the construction of the Chesapeake and Ohio Canal, Hudson River Tunnel, the Washington Aqueduct, the Kanawha River Canal, and the Washington/Harlem River Bridge. There are also several records about railroads in the state of Maryland, the District of Columbia and elsewhere, including the Western Maryland Railroad, Baltimore and Ohio Railroad, Colorado Midlands Railway, Baltimore and Drum Point Railroad, the Northern Adirondack Railroad, and the Pittsfield and Williamstown Railroad. The records can be used to track the progression of these projects, and engineering innovation during the late 1800s to the early 1900s.

The Philip Van Horn (P. V. H. ) Weems Papers contain 79 cu. ft. of materials related to his life and career.

Records document Charles Eisler, a Hungarian immigrant who was a skilled mechanic and engineer and his company, Eisler Engineering Company of Newark, New Jersey, which manufactured equipment for producing electric lamps, television and radio tubes, welding equipment and laboratory equipment.