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Creators:
Chattanooga and Tennessee River Power Company
Dates:
1905-1968
Size:
1 Cubic foot (2 boxes)
Collection ID:
NMAH.AC.1051
Repository:
Archives Center, National Museum of American History

The Hales Bar Dam was built on the Tennessee River to improve river navigation and produce hydroelectric power. Construction work on the dam, which took place from 1905 to 1913, faced engineering challenges and leaks due to the broken and creviced limestone beneath the dam. The collection spans 1905-1968 and includes papers, reports, drawings and photographs related to the construction of the dam, as well as documents related to its maintenance in the decades following its completion.

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Creators:
Morison, George S., 1842-1903
Dates:
1846-1903
Size:
30 Cubic feet (61 boxes and 152 map-folders)
Collection ID:
NMAH.AC.0978
Repository:
Archives Center, National Museum of American History

The collection documents the career of George S. Morison, a prominent civil engineer, specializing in railroad bridge design. The materials consist primarily of drawings and maps (linen tracings, blueprints, sketches); final bridge reports; photographs; glass plate negatives; daily diaries; correspondence; and published material documenting George S. Morison's participation on the Isthmian Canal Commission, 1898-1903.

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Creators:
Enterline, Stevenson
History of Technology, Division of, NMAH, SI
Work and Industry, Division of, NMAH, SI
Eney, William J.
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Dates:
1905-1986
bulk 1905-1916
Size:
0.5 Cubic feet (3 boxes, 1 oversized folder)
Collection ID:
NMAH.AC.1026
Repository:
Archives Center, National Museum of American History

The collection documents the construction of the first and second Quebec Bridges over the St. Lawrence River. Construction on the first bridge began in 1900 and the bridge collapsed before completion in 1907. Construction on the second Quebec Bridge, which is the longest cantilever bridge in the world, was completed in 1917.

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Creators:
Pittsburgh Locomotive and Car Works
Transportation, Division of, NMAH, SI.
Dates:
1874-1910
Size:
1.5 Cubic feet (3 boxes)
Collection ID:
NMAH.AC.0164
Repository:
Archives Center, National Museum of American History

This collection consists of business correspondence 1895-1901 of the company, including correspondence of the General Manager, D.A. Wightman; personal papers of Mr. Daniel A. Wightman including a sketch book, 1874-76; Specifications for locomotives and tenders; price lists; locomotive cost estimates; tests; hauling capacities of locomotives; and co...

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Creators:
Ehrat, Arthur
Fleckner, John A., 1941-
Dates:
2011
1865-2005
bulk 1970-1990
Size:
10 Cubic feet (26 boxes)
Collection ID:
NMAH.AC.0907
Repository:
Archives Center, National Museum of American History

Arthur Ehrat invented and patented a breakaway basketball rim, fashioning his prototypes from bolts, metal braces and one key part: a piece of the heavy-duty coil spring on a John Deere cultivator. His invention helped to revolutionize the way basketball is played because players could slam dunk the ball with fewer injuries and without bending the rims or breaking backboards. This collection includes correspondence, legal documents --such as patent papers, litigation files and licensing agreements --photographs and sketches that relate to the basketball invention, as well as materials regarding his two field spreader patents and other invention ideas.

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Creators:
Leubuscher, Frederic
Costain, Harold Haliday
Dates:
circa 1930-1940
Size:
0.1 Cubic feet (106 slides, 35mm)
Collection ID:
AAG.LBR
Repository:
Archives of American Gardens

The Frederic H. Leubuscher Collection contains 106 duplicate 35mm slides documenting examples of Leubuscher's landscape architecture design work in New Jersey, New York, North Carolina, Rhode Island and other locations.

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Creators:
Jackson, William Henry, 1843-1942
Dates:
circa 1870-1872
Size:
2 copy prints
Collection ID:
NAA.PhotoLot.R82-10
Repository:
National Anthropological Archives

Portraits of Leon Palliday and "Nick" Jenise, two American Indian language interpreters for the United States Geological Survey of the Territories. Notation on the verso incorrectly identifies the photographer as Charles Milton Bell.

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Dates:
1980-1999
Size:
10.67 Cubic feet (12 containers)
Collection ID:
NASM.2018.0048
Repository:
National Air and Space Museum Archives

This collection consists of material relating to the United States Navy YEZ-2A Airship Program.

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Creators:
National Air and Space Museum. Archives Division.
Dates:
1912-1987
bulk 1930-1945
Size:
1,765.61 Cubic feet (1375 records center boxes; 1 flat box; 2 microfiche boxes)
Collection ID:
NASM.XXXX.0429
Repository:
National Air and Space Museum Archives

The Aviation Technical Manuals Collection contains over 40,000 original aviation technical manuals for aircraft, engines, aircraft components, and ground equipment.

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Creators:
Bartleman, Richard M.
Dates:
circa 1890-1899
Size:
100 Prints (circa, cyanotype, albumen, and halftone)
Collection ID:
NAA.PhotoLot.156
Repository:
National Anthropological Archives

Photographs made in Caracas by Richard M. Bartleman while with the United States Legation during the 1890s. The collection includes images of streets, military personnel, structures, residences and gardens, artifacts, people, scenery, and a bullfight in or near Caracas, Venezuela.

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