The engineering firm that became Lockwood Greene was founded by David Whitman, a mill engineer, in 1832. Amos D. Lockwood, a consultant, succeeded Whitman and entered a partnership with Stephen Greene in 1882. The firm specialized in industrial engineering and construction; they designed and built a wide variety of structures and work environments worldwide over the next century. Lockwood Greene was acquired by CH2M HILL in December, 2003. Before its acquisition by CH2MHILL it was reportedly the oldest industrial engineering, construction, and professional services firm in the United States.
Wilbur L. Metz Collection of Railroad Ephemera
Pittsburgh and Lake Erie Railroad Company
United Transportation Union
Printed materials collected by Metz during his railroad career, including timetables, rule books, operational manuals, safety manuals, labor union materials, regulations, Metz' IDs and certifications, blank company forms, company newsletters, and internal memoranda and correspondence. The papers relate to several railroads: Western Maryland Railway Company, the Reading Co., Pittsburgh and …
William K. Applebaugh Papers
The papers document the life and career of William K. Applebaugh, and his activities as a telegrapher during the U.S. Civil War.
Lehigh Valley Railroad Records
Papers and photographs documenting the Lehigh Valley Railroad.
C.L. Stong Papers
These papers are the files of the editor of "The Amateur Scientist" section of the Scientific American from 1952 to 1975. They are arranged chronologically by date of article. The feature was started in 1952 as an expansion of "The Amateur Astronomer" section of the periodical. The papers include files of Stong's predecessor …
Chicago, Burlington & Quincy Railroad Negatives
The photographic images in this collection are largely of railway bridge construction and other properties owned by the Chicago, Burlington & Quincy Railroad Company at the turn of the twentieth century. Images are of two distinct projects (mostly construction) taken in and around the St. Louis, Missouri area (1890-1900): of a bridge project (name and location unknown) spanning 1902-1903; and of the construction of the Metropolis Bridge (that crosses the Ohio River at Metropolis, Illinois, about 12 miles south of Paducah, Kentucky) between 1914-1915. For the latter project Ralph Modjeski originally served as consultant engineer and then as chief civil engineer of construction. There are also negatives of unidentified bridge construction.
Elisha Gray Collection
Legal documents, photographs, articles, copies of correspondence, three folders of original Gray correspondence on the Gray-Bell controversy; most of the collection consists of copies of material, or printed matter, collected by Lloyd W. Taylor of the museum staff.
Richard Steele Papers
The collection, which consists of notebooks, journals, photographs, correspondence, memos, brochures, and technical drawings, is divided into three series: Sketches, Drawing Journals and Tests; Ram Company Materials; and Photographs. The papers were selected from among Mr. Steele's files by his son, Christopher. As a result, the papers included are somewhat …
Emanuel Gerard Collection of Mather and Company Employee Motivation Posters
Thirty-five work incentive posters published by Mather and Co.
Halacsy and Von Fuchs Documentation for Transformer History
Halacsy, Andrew, Dr. (electrical engineer)
Contains information directly relevant to the transformer's 1884-1885 evolution and secondary references and articles which von Fuchs and Halacsy referred to in their research.