Finding aids (235) Images (172) Electronic resource (4)

Archival materials (302) Collection descriptions (235) Photographs (90) Drawings (86) Manuscripts (72) Clippings (47) Correspondence (46) Black-and-white photographs (43) Graphic Materials (40) Business records (23) Scrapbooks (21) Architectural drawings (19) Motion pictures (visual works) (19) Black-and-white negatives (18) Maps (18) Reports (18) Audiotapes (17) Diaries (17) Works of art (17) Blueprints (16) Brochures (16) Floor plans (16) Photographic prints (16) Field notes (14) Negatives (14) Newsletters (13) Videotapes (13) Books (12) Color photographs (12) Contracts (12) Ephemera (11)

Museums (27) Museum exhibits (22) Railroads (22) Bridges (15) World War, 1939-1945 (13) Engineering (12) Indians of North America (11) Paleontology (10) Aeronautics (9) Geology (9) Architecture (8) Tunnels (8) African Americans (7) Buildings (7) Historical museums (7) Museum buildings (7) Museum directors (7) Natural history (7) Transportation (7) advertising (7) Architectural design (6) Art, Modern (6) Civil engineering (6) Civil engineers (6) Engineers (6) Museum curators (6) Periodicals (6) Aeronautics, Commercial (5) Anthropology (5) Archaeology (5) Architects (5)

Sohon, Gustav (45) Duncan, Johnson Kelly (44) Stanley, John Mix (44) United States Pacific Railroad Expeditions and Surveys (44) National Museum of American History (U.S.). Division of Mechanical and Civil Engineering (14) Pacific Railroad Survey (14) Jackson, William Henry (11) National Museum of American History (U.S.). Division of Work and Industry (11) National Museum of American History (U.S.). Division of History of Technology (10) Geological Survey (U.S.) (6) Hillers, John K. (6) Gardner, Alexander (5) National Museum of American History (U.S.). Division of Engineering and Industry (5) Underwood & Underwood (5) Warshaw, Isadore (5) Whitney & Zimmerman (5) Whitney, Joel E. (Joel Emmons) (5) Beaman, Edward O. (4) Caswell & Davy (4) Chamberlain, W. G. (William Gunnison) (4) Continent Stereoscopic Company (4) O'Sullivan, Timothy H. (4) Savage, C. R. (Charles Roscoe) (4) Smithsonian Institution. Bureau of American Ethnology (4) American Association for the Advancement of Science (3) Barker, George (3) Bennett, H. H. (Henry Hamilton) (3) Boas, Franz (3) Brown, William Henry (3) Childs, B. F. (Brainard F.), ca. 1841-1921 (3) Cross, W. R. (William R.) (3)

Indians of North America (17) Anishinaabe (Chippewa/Ojibwa) (8) A:shiwi (Zuni) (7) Ho-Chunk (Winnebago) (7) Ute (7) Apsáalooke (Crow/Absaroke) (6) Diné (Navajo) (6) Iroquois (6) Niuam (Comanche) (6) Sioux (6) Tsitsistas/Suhtai (Cheyenne) (6) Apache (5) Arctic peoples (5) Chaticks Si Chaticks (Pawnee) (5) Hopi Pueblo (5) Kiowa (5) Sahnish (Arikara) (5) Shoshone (5) Eskimos (4) Isleta Pueblo (4) Kalispel (Pend d'Oreilles) (4) Modoc (4) Niimíipuu (Nez Perce) (4) Numakiki (Mandan) (4) Omaha (4) Potawatomi (4) Pueblo (4) Sauk (4) Seminole (4) A'aninin (Gros Ventre) (3) Akimel O'odham (Pima) (3)

Washington (D.C.) (9) New York (N.Y.) (7) United States (7) California (6) Pennsylvania (6) Africa (5) Arizona (5) South Africa (5) Colorado (4) New Jersey (4) New York (4) North America (4) Texas (4) Alaska (3) Boston (Mass.) (3) China (3) Detroit (Mich.) (3) Egypt (3) Hudson River (3) Kenya (3) Mall, The (Washington, D.C.) (3) Maryland (3) Mexico (3) New Mexico (3) Tanzania (3) Benin (2) Burkina Faso (2) Central African Republic (2) Chicago (Ill.) (2) Congo (Democratic Republic) (2) Cuba (2)

National Anthropological Archives (91) Archives Center, National Museum of American History (85) Smithsonian Institution Archives (75) Archives of American Art (15) National Air and Space Museum Archives (9) Archives of American Gardens (6) Ralph Rinzler Folklife Archives and Collections (6) Freer Gallery of Art and Arthur M. Sackler Gallery Archives (5) National Museum of the American Indian (4) Eliot Elisofon Photographic Archives, National Museum of African Art (3) Human Studies Film Archives (1) National Museum of African American History and Culture (1) Smithsonian American Art Museum, Research and Scholars Center (1)