These papers consist mainly of records of the Astrophysical Observatory (also abbreviated APO) under the Directorship of Samuel P. Langley, Charles G. Abbot, and Loyal Blaine Aldrich.

The Paul E. Garber Collection documents Paul Edward Garber's life, both personal and professional, prior to and during his 72-year tenure at the National Air and Space Museum.

The records document the work of consulting engineers and bridge builders, Ralph Modjeski (1861-1940) and Frank Masters (1883-1974) of Harrisburg, Pennsylvania.

This record unit documents the growth and management of the Smithsonian from 1890 to 1929. Of special interest is the Institution's entry into the field of the fine arts through the creation of the National Gallery of Art and the Freer Gallery of Art. The Smithsonian continued to pursue a wide variety of other interests as well. Thus, the...

These records consist of the correspondence of the director of the International Exchange Service along with invoices and shipping instructions. The bulk of the correspondence relates to the exchange of printed matter between parties in the United States and abroad.

This collection consists of digital documents on one 256 GB SunDisk drive gathered by David Stumpf for his book, Minuteman: A Technical History of the Missile That Defined American Nuclear Warfare, a detailed history of the Minuteman intercontinental ballistic missile program.

Collection documents an awards program established in 1989 as a partnership between Computerworld Magazine and the Smithsonian Institution. The Computer World Smithsonian Awards (CWSA) brought together the Chairmen of Chief Executive Officers of the world's foremost information technology companies with the world's leading universities, libraries and research institutions to document a revolution in progress—the global information technology revolution. The program identified men, women, organizations and institutions leading the technology revolution and asked them to contribute case studies. Collection consists of case studies which include questionnaires, essays, oral histories, conference proceedings, publications, video tapes, photographs, slides, software, and product samples about each project.

Harrington was a Bureau of American Ethnology ethnologist involved in the study of over one hundred American tribes. His speciality was linguistics. Most of the material concerns California, southwestern, northwestern tribes and includes ethnological, archeological, historical notes; writings, correspondence, photographs, sound recordings, biological specimens, and other types of documents. Also of concern are general linguistics, sign language, writing systems, writing machines, and sound recordings machines. There is also some material on New World Spanish, Old World languages. In addition, there are many manuscripts of writings that Harrington sketched, partially completed, or even completed but never published. The latter group includes not only writings about anthropological subjects but also histories, ranging from a biography of Geronimo to material on the history of the typewriter. The collection incorporates material of Richard Lynch Garner, Matilda Coxe Stevenson, and others. In his field work, Harrington seems sometimes to have worked within fairly firm formats, this especially being true when he was "rehearing" material, that is in using an informant to verify and correct the work of other researchers. Often, however, the interviews with informants (and this seems to have been the case even with some "rehearings") seem to have been rather free form, for there is a considerable intertwining of subjects. Nevertheless, certain themes frequently appear in his work, including annotated vocabularies concerning flora and fauna and their use, topography, history and biography, kinship, cosmology (including tribal astronomy), religion and philosophy, names and observations concerning neighboring tribes, sex and age division, material culture, legends, and songs. The fullness of such materials seems to have been limited only by the time Harrington had to spend with a goup and the knowledge of his informants.

An extensive and comprehensive collection of posters from World War I and World War II.

The Russian Aeronautical Collection is a mix of technical, historical, and cultural reference materials, including originals or copies of articles, documents and other historical materials relating to Russian and Soviet aviation from the Tsarist period through the Soviet era. The collection focuses on key events, personalities and aircraft designs, and certain subject areas are covered in depth, including the life and career of Igor Sikorsky, the transpolar flights of the 1930s, Soviet aviation in the Spanish Civil War, and the operational history of the Soviet Air Force in World War II.