The collection consists chiefly of hand-written notes made by Southgate on a wide range of postal history topics and related matters, generally on lined or graph paper measuring 25 x 15 cm. or smaller, for keeping in triple-post binders. Some of the notes were made in "Lefax" or other commercially-available notebooks. The collection includes numerous mounted newsclippings, brochures, and excerpted articles from philatelic journals, as well as statistical data, advertisements, copies of correspondence, and diagrams made by Southgate to illustrate plate variations, etc.

These records consist of staff correspondence and memoranda of the National Postal Museum and its predecessors; early photographs of exhibitions; planning information for the Hall of Philately; newspaper clippings, articles, and research files documenting the origin and extensive history of the National Postal Museum; proposals, preliminary ...

The collection documents the professional activities of Joseph Selle (1906-1988), a photographer and proprietor of Fox Movie Flash, a street photography business in San Francisco, California. There are a few documents relating to Selle's personal life, but the bulk of the papers relate to his street photography business. Most of the documents date from between 1945 and 1975 and include insurance papers, correspondence, legal documents, receipts, tax records, cashbooks, employment applications, newspaper clippings, licenses and permits, payroll materials, and bank statements, as well as samples of photographs from the business.

The Philip Van Horn (P. V. H. ) Weems Papers contain 79 cu. ft. of materials related to his life and career.

The records contain proposals and drafts of contracts and grants, correspondence concerning their acceptance and implementation, budget information, reports about grant-sponsored activities, and information concerning the administration of the Office and the authority of the Contracting Officer. Entries include the following information if ava...

The bulk of this collection was processed by Jane Livermore, a devoted and tireless volunteer in the Smithsonian Institution Archives between 1995 and 2004. Livermore is a former Science Service employee. She worked in the organization's library, oversaw the educational project "THINGS of Science," and served as Assistant to the Director. ...

These records document primarily the history of typeface development at the Mergenthaler Linotype Company of Baltimore, Maryland. The company supplied most of the typesetting machines used in the printing industry, both in America and worldwide. As changing technology ended the usefulness of the linotype machine the company pioneered new computer-driven, photo typesetting machines.

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 collection documents in photographs, scrapbooks, notebooks, correspondence, stock ledgers, annual reports, and financial records, the evolution of the telegraph, the development of the Western Union Telegraph Company, and the beginning of the communications revolution. The collection materials describe both the history of the company and of the telegraph industry in general, particularly its importance to the development of the technology in the nineteenth and twentieth centuries. The collection is useful for researchers interested in the development of technology, economic history, and the impact of technology on American social and cultural life.

The papers of Chicago art conservator, Louis Pomerantz, measure 34.2 linear feet and date from 1937 to 1988, with the bulk of the material dating from the 1950s-1980s. The papers document two principal aspects of Pomerantz's professional life: his conservation work for institutions and individuals, and the development of his professional expertise as documented through his writings and teachings, his continued conservation training, and his involvement in professional organizations. Files include scattered biographical material, professional correspondence, interviews, writings, project and client files, teaching and reference files, printed material, and photographic material primarily documenting conservation treatments and techniques.