This collection is comprised of digital surrogates previously available on five rolls of microfilm described in the NARA publication M1914. These digital surrogates reproduced the records of the Freedmen's Department (Precursor to the Office of the Assistant Commissioner in the Bureau of Refugees, Freedmen, and Abandoned Lands) for the period 1863–1865. These records consist of bound volumes and unbound records, containing materials that include letters sent and received, operations and ration reports, registers of freedmen, labor contracts, and other records relating to orders issued and received, hospitals, and schools.

This record unit documents the administration of William Henry Holmes, first Curator of the National Gallery of Art (NGA), 1907-1920, and Director of the Gallery, 1920-1932. To a lesser extent, it also documents the administration of Ruel P. Tolman, Acting Director of NGA, 1932-1937, and the National Collection of Fine Arts (NCFA), 1937-1946, ...

This collection consists of the corporate records of the Curtiss-Wright Corporation. Included in the collection are technical and engineering reports of Curtiss-Wright Airplane Division's operations in St. Louis (Robertson), MO (1935-1945) and Buffalo, NY, (1932-1945), as well as AAS Material Division and AAF Air Technical Services Command memorandum reports collected by Curtiss-Wright's St. Louis and Buffalo technical reference libraries. The collection also contains the files of Curtiss-Wright's Patent Department, which hold records of patents filed by Curtiss-Wright and patent-infringement cases involving Curtiss-Wright. Also included in the collection are specifications issued by and photos commissioned by the Keystone Aircraft Corporation (Huff-Daland Airplanes, Inc. until March 1927), which had been acquired by Wright in 1928 along with Loening Aeronautical Engineering Corp., and formed the Keystone Division of Curtiss-Wright until 1932 when Keystone's Bristol, PA factory closed its doors. The collection also contains financial records of the Curtiss-Wright Airports Corporation, which was liquidated in 1936, as well as an extensive negative collection featuring Curtiss-Wright aircraft from the 1930s and 1940s, concentrated especially on the war years.

The collection is comprised of digital surrogates previously available on the 42 rolls of microfilm described in the NARA publication M1906. These digital surrogates reproduced the records of the Maryland and Delaware field offices of the Bureau of Refugees, Freedmen, and Abandoned Lands, 1865–1872. These records consist of bound volumes and unbound records, containing materials that include letters and endorsements sent and received, orders and circulars, monthly reports, and other records relating to freedmen's complaints and claims.

Pamphlets published by the General Motors Company, covering a wide variety of topics, including business and industry, economics, household tips, politics, safety, and self-improvement. There are also a number of pamphlets about General Motors itself. Many of these pamphlets also serve as corporate propaganda.

This collection is comprised of digital surrogates previously available on the 67 rolls of microfilm described in NARA publication M1048. These digital surrogates reproduced the records of the Assistant Commissioner for the State of Virginia, Bureau of Refugees, Freedmen, and Abandoned Lands, 1865–1869. The records consist of 40 bound volumes and 51 linear feet of unbound documents. The bound volumes include letters and endorsements sent, registers of letters received, orders and circulars issued, and some personnel records. The unbound records consist primarily of letters and reports received.

This collection is comprised of digital surrogates previously available on the five rolls of microfilm described in the NARA publication M1875. These digital surrogates reproduced marriage records of the Office of the Commissioner, Washington headquarters of the Bureau of Refugees, Freedmen, and Abandoned Lands, 1861–1869. These records consist of unbound marriage certificates, marriage licenses, monthly reports of marriages, and other proofs of marriages.

Collection documents the manufacture of both freshwater pearl and plastic buttons in Muscatine, Iowa, including at least 12 different companies from primarily 1925 to the 1960s.

This collection consists of Willey Ley's personal files, including his business correspondence, book contracts, and galley proofs, as well as publicity concerning Dr. Ley and his activities, and inquiries and comments from Ley's readership during his tenure as columnist for Galaxy Magazine (1952-1969). The material also includes articles gathered by Ley on topics ranging from astronomy and space travel to biology and natural parks to mythology, psychic phenomena, and UFOs.

Ralph H. Baer was a German-born ordnance specialist, inventor, and engineer. He was a pioneer of early videogame technology. The papers include autobiographical materials; firearms notes, manuscripts, and photographs; and videogame and television engineering notes, diagrams, schematics, and video documentation.