Horatio Allen Papers
The collection documents civil engineer Horatio Allen's work with the Croton Aqueduct Board in New York, and with the New York Bridge Company.
Charles H. Land Papers
Lindbergh, Charles A. (Charles Augustus), 1902-1974
The collection documents inventor and dentist Charles H. Land and consists of correspondence, financial records, patent records, articles, printed material, writings, sermons and photographs.
Medical and Chirurgical Faculty of the State of Maryland Collection
18th, 19th, and 20th century material deposited with the Medical and Chirurgical Faculty of the State of Maryland, chiefly relating to the practice of medicine in the state. Includes correspondence, papers, certificates, diplomas, patents, maps, notebooks, clippings, prescriptions, pamphlets, photocopies of documents, scrapbooks, photographs, and paintings.
Worthington Corporation Records
This collection documents the products and business activities of the Worthington Corporation, its predecessors and its subsidiaries. The records focus on the products that the Worthington Corporation produced, including steam pumps, hydraulic pumps and gas engines.
Hiram Moore Collection
Moore, Hiram, 1801-1875
The collection documents Hiram Moore's invention of a harvesting machine.
19th century African-American Literature Collection
This collection, which dates from the 19th century, contains 30 books written by or concerning African-Americans. The books are largely non-fiction and include material relating to African-American churches and evangelists, fraternal organizations, prominent members of the African-American Community, former slaves, education and self-improvement. Also present are several volumes of poetry, a tax ledger and a volume concerning patents.
Reuben Moffat Papers
The collection documents personal correspondence between Reuben Moffat and his father, John Little Moffat. The materials consist primarily of letters written during the year 1852 and detail Reuben Moffat's attempts to obtain a patent for his electric gold washer and magnetic separator invention.
James Arthur Clock and Watch Collection
Arthur, James, 1842-1912 (machine shop owner)
A collection of diverse archival materials on the subject of watches and clocks assembled by James Arthur (1842-1912).
Peter Paul Haring Papers
Papers relating to Haring's development of cotton picking machines, 1894-1930.
Elmer Gates Papers
Papers document the life of Elmer Gates (1859-1923), an independent American inventor and psychologist. Gates developed ideas related to experimental psychology and inventions in fields such as metallurgy, electricity, microscopy, X-rays, and pedagogy. Papers include correspondence, photographs, patents, articles and clippings, writings, and estate documents.