David Thomas (1794-1882) was a Pennsylvania iron manufacturer who introduced into the United States the use of anthracite coal in the manufacture of pig iron. The papers consist of twenty-eight letters received by Thomas between May 1839 and 1842. They contain important new information on one of the textbook examples of nineteenth century technology transfer.

Éleuthère Irénée du Pont de Nemours (1771–1834) was a French American chemist and industrialist who founded the gunpowder manufacturer E.I. du Pont de Nemours & Company. E.I. du Pont married Sophie Dalmas du Pont (1775-1828) in 1791; the couple had eight children, one of whom died in infancy. This collection of papers includes outbound and inbound correspondence covering personal and business matters. These include personal accounts, writings and memoirs, legal documents, and miscellany, of which the majority are accounts. There are papers of the E.I. du Pont de Nemours & Co. that date from 1802 to 1850 and include correspondence (drafts, retained copies, and letters received), contracts and other legal documents, accounts, bills and receipts, checks, promissory notes, bills of exchange, drafts, and certain miscellaneous notes and memoranda.

Gordon M. Kline (1903-1996) was highly involved in the plastics industry, beginning in its infancy. He worked in the plastics section of the National Bureau of Standards, editor of Modern Plastics, and with the U.S. government on preservation of significant historical items. The papers document his professional career with the National Bureau of Standards, along with material describing his work with the Society of the Plastics Industry, the American Society for Testing Materials, and the International Standards Organization.

Gordon M. Kline (1903-1981), earned a Ph.D. in chemistry from University of Maryland in 1934, served as a technical investigator for the U.S. Army in Germany in 1945. These are three snapshot photographs of Dr. G. M. Kline and research team in Troisdorf, Germany, June 1945.

Henry A. Janvier (1861-1952) was an engineer with the Ferracute Machine Company of Bridgeton, New Jersey, where he had begun work in 1877 as a sixteen-year-old apprentice. Sometime in 1896, Ferracute signed a contract with the Chinese government to build three mints there, two at Wuchang in Hopei Province and one in Chengtu in Szechwan. Janvier served as chief engineer for the project. This collection includes Janvier's letters to his family, in which he describes his 1897 trip to China.

Joshua Gilpin (1765-1841) was a merchant and paper manufacturer. The papers consist of copies of four typescript letters written to Matthew Boulton (1728-1809), a British engineer from Joshua Gilpin.

Founded in 1831 as the Elkinton Company and later renamed, Philadelphia Quartz Company became an important innovator during World War I by discovering that silica gels could be used as a base to manufacture catalysts for cracking crude oil molecules to make high-octane gasoline and developing potassium silicate which was adopted for use in cathode ray tubes. The company's records includes business records and the personal papers of the company's founding family.

Polyacryl Iran Corporation (PIC) manufactured polyester and acrylic synthetic textiles in Iran. It was incorporated in August 1974 as a joint venture between E.I. du Pont de Nemours & Company, one of the largest U.S. chemical firms, and the Behshahr Industrial Development Corporation, a conglomerate run by the influential Lajevardian family. Because of political unrest within the country, DuPont shut the plant down in early 1979 with the hope of resuming operations at a later date. When Iran's textile industry was nationalized under Ayatollah Ruhollah Khomeini following the Islamic Revolution, DuPont initiated legal action for claims against PIC and the Iranian government. An international court reviewed DuPont's claims and directed the Islamic Republic of Iran to reimburse DuPont for $42 million. The American records of the Polyacryl Iran Corporation document DuPont's role in the transfer of American technology to Iran, the fate of Western interests during the Iranian Revolution, and the subsequent expropriation and pursuit of damage claims. Because of the litigation surrounding the termination of DuPont's participation in the project, the records contain extensive plant design and managerial training documents that give a detailed picture of a state-of-the-art synthetic textile factory of the late 1970s.

William Liseter Austin (1852-1932) was an executive of the Baldwin Locomotive Works in Philadelphia. Baldwin Locomotive Works was a manufacturer of railroad locomotives from 1825 until 1972. The papers include correspondence, most of which is technical in nature; there is also a vertical file on the construction, sale, and parts of locomotives; specifications; sketches and sketchbooks; and engineering drawings. A very small portion of the collection covers Austin's personal affairs.

William Sellers & Co. was an iron works that manufactured machine tools used for turning, planing, shaping, drilling, boring, or cutting metal or wood. The company was founded in 1848 as Bancroft & Sellers by mechanical engineers and inventors Edward Bancroft (1811-1855) and William Sellers (1824-1905). The records consist of five volumes, as well as correspondence from William Sellers and the Sellers firm.