Collection documents transportation analyst, consultant and planner Frank H. Waring and his consulting firm The Waring Group, Inc.

The Dr. G. Howard White, Jr. Collection contains images of family members and residences relating to the White family of Catonsville, Maryland and Middleburg, Virginia and the Liebig family of Catonsville, Maryland, as well as recreational, industrial, and general sites in Virginia, Maryland, and New Jersey. The images, taken by Dr. G. Howard White, Jr. and Dr. Gustav Adolph Liebig, both amateur photographers, document everything from informal family gatherings and outings to domestic servants, workers, factories and railroad lines. The acession file includes some genealogical information and research on properties conducted in 2005.

The collection documents the building, operation and daily life of coal mining communities in Kentucky, West Virginia and Ohio between 1911 and 1946. The collection is a valuable for the study of mining technology and the social conditions of the time period and regions.

Approximately 11,000 images collected by Thomas Norrell consisting of original photographic prints and photographic postcards, original film and glass plate negatives, and duplicate/copy photographic prints and negatives. The majority are external views of single locomotive engines of North American railroad and industrial companies. Images of international railroad company locomotives and of representative locomotives from various locomotive works and builders are also included. The collection contains a small number of subject-specific images covering such topics as train wrecks, funeral trains, experimental locomotives, miniature trains, and locomotives at the 1933 and 1939 World's Fairs.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Railroads forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

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.

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...

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.

The H. Weber & Sons Co. records document the professional activities of The H. Weber & Sons Company, a florist business consisting of a florist shop and greenhouse which was located in Oakland, Maryland. The collection contains business records, photographs, horticultural medals and wire frames used for floral displays.

The Cummings Structural Concrete Company Records consists primarily of correspondence and business records documenting Robert A. Cummings' firm, consulting work, and participation in professional associations, especially the American Society of Civil Engineers, 1892-1893, circa 1900-1939; technical data and publications on soils testing, 1900-1939;...