Fifty-eight titled photographs taken by Sir Robert Cotton, of scenes along the C & O Canal, including locks, acqueducts, canal station; and cyclists and joggers along the towpaths.

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.

These records consist primarily of administrative files of the Assistant Secretary for Research, 1987-1990, documenting his responsibility for the National Air and Space Museum, the National Museum of Natural History, the National Zoological Park, the Smithsonian Environmental Research Center, the Smithsonian Astrophysical Observatory, th...

A collection of 122 silver gelatin photoprints of Walker R. Smith depicting various Maryland scenes including railroads and family life of the 1930s and 1940s.

The Smithsonian Institution Archives began its Oral History Program in 1973. The purpose of the program is to supplement the written documentation of the Archives' record and manuscript collections with an Oral History Collection, focusing on the history of the Institution, research by its scholars, and contributions of its staff. Program ...

These records include sketches, drawings, blueprints, contracts, and reports relating to highway and railroad bridges, tunnels, subways, mine shafts, canals and waterways, dams, concrete buildings, concrete construction, derricks and derrick barges, cranes, caissons and caisson construction, air locks, pumps, jacks, engines, and turbines; also phot...

This scrapbook pertains to the homecoming of Patrol Squadron 661 in 1962. The scrapbook includes the following: narrative, tentative plan of execution, and schedule of events for the homecoming ceremonies; letter of appreciation to families; notification to personnel of ceremonies; press release/fact sheet/unit history; newspaper clippings; notific...

These records document the history, operation, and activities of the ANS (before 1960, the Audubon Society of the District of Columbia). They also help to illustrate the evolution of the local and national conservation movement; environmental legislation and issues supported by ANS; the development of environmental education; and the natural ...

The collection consists of correspondence, invoices, drawings, photographs, and negatives and other printed literature documenting the Baltimore and Ohio Railroad from its inception in 1827 to its merger with the Chesapeake and Ohio Railroad in the 1960s.

The Thomas Warren Sears Photograph Collection documents examples of the design work of Thomas Warren Sears (1880-1966), a landscape architect and amateur photographer from Brookline, Massachusetts. Sears, who was based for most of his career in Philadelphia, designed a variety of different types of landscapes ranging from private residences, schools, and playgrounds to parks, cemeteries, and urban housing developments located primarily in Pennsylvania, Maryland, and New York. In addition to some of Sears' design work, images in the collection document Sears' domestic and foreign travels, design inspirations, and family. The collection includes over 4,800 black and white negatives and glass lantern slides dated circa 1899 to 1930. While most images show private and public gardens, there are a significant number of unidentified views and views photographed in Europe during two trips he took there in 1906 and 1908. Few images are captioned or dated. In addition, there are over 50 plans and drawings, most notably for Balmuckety in Pikesville, Maryland and Reynolda in Winston-Salem, North Carolina, and 3 monographs by or about Sears.