John Margolies (1940-2016) was an American photographer and architecture critic with a fondness for novelty architecture. This is his personal collection of travel ephemera that he collected from across North America. These materials primarily cover the United States’ most popular tourist spots with an emphasis on the Northeast region of the United States.

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. The Public Affairs Department began as the Publicity Bureau in 1916, to deal with issues raised by the great increase of business spawned by World War I. Prior to this time, publicity had been handled by the Advertising Division, created in 1911. The Public Affairs Department records contain biographical sketches of deceased officers, employees, and du Pont family members, as well as histories of company plants, predecessor companies, and all line and staff departments. The alphabetical history file contains press releases, memoranda, and pamphlets that were assembled for various public relations campaigns.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. This collection includes nine letters of correspondence to the Pusey & Jones Company and Horace H. Thayer (1878-1959), from J.N. Davis, and from the Pulp and Paper Magazine.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. The collection primarily contains correspondence between Horace H. Thayer Jr. (1878-1959) and Thomas H. Savery (1837-1910) regarding matters of importance to the company.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. This collection contains miscellaneous material from the company including financial statements, calling cards, memoranda, and correspondence from Thomas H. Savery (Sr. and Jr.), Eugen Fullner, and A.G. Paine.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. This collection includes the files of John Biggs III (1927-), attorney, who oversaw the bankruptcy proceedings and dissolvement of the company.

Richard Hollerith, Jr. (1926-), spent his professional career working as an industrial designer of office products, computers, printers, office space, and household products. His papers include correspondence, meeting minutes, conference and working group reports, and blueprints reflecting his work as a designer and as an advocate of universal design and barrier-free environments.

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.

The Joseph Bancroft & Sons Company operated cotton textile mills in Wilmington, Delaware, where they manufactured, bleached, dyed, and finished a variety of cotton-made goods. The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. This collection consists of eleven small notebooks from the two companies regarding their work.

Alfred Irénée du Pont (1864-1935) was the eldest son of E.I. du Pont (1829-1877). He joined the family gunpowder firm in 1884. Gabrielle Shubrick Crofton (1835-1894) was the daughter of Alfred I. du Pont's first cousin, Julia Sophia du Pont (1806-1882) and Irvine Shubrick (1797-1849). This collection consists of two individual portraits, one of Gabrielle Shubrick Crofton and the other of Alfred I. Du Pont.

Gabrielle Crofton (1873-1952) was the daughter of Gabrielle Josephine Shubrick (1835-1894) and Robert Erskine Anderson Crofton (1834-1898), and the great-granddaughter of Victor Marie du Pont (1767-1827), a prominent French American diplomat and businessman. The collection consists of two diaries, dating from 1917 to 1926, and reflect the leisured life of a middle-class, unmarried woman in the first quarter of the twentieth century United States.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. This collection contains a minute book and account book of the Trustees of the Pusey & Jones Corporation employees' retirement plan trust fund. It also includes other material kept by Warren D. Walker (1894-1969), one of the last executives for the company.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. The collection is a plat of the property around Pusey and Jones Company plant in Wilmington, Delaware.

Joseph N. Borglin (1899-1976) was a chemical engineer in the Agricultural Chemicals Division at Hercules Powder Company. The records include typescripts for two works by Borglin: "Treatise on Vinsol Resin" and "Treatise on Rosin" both from the 1940s.

Joseph P. Hornor (1785-1845) was a merchant in Philadelphia in the early nineteenth century. The collection is comprised of a letter book of Hornor's outbound letters, describing mercantile business spreading throughout the Philadelphia hinterlands.

The Margaretta E. "Meta" du Pont Coleman Papers primarily consist of family correspondence collected by Meta Coleman.

Baldwin Locomotive Works was a manufacturer of railroad locomotives from 1825 until 1972. The company was originally located in Philadelphia and then later moved to Eddystone, Pennsylvania. This album contains twenty two photographs of Baldwin Locomotive Works train engines, train cars, and parts. The album appears to have been created by company President S.M. Vauclain for the Trades Exhibit at the Constitutional Centennial Celebration.

Samuel Vauclain (1856-1940) was an engineer, inventor, and was president of Baldwin Locomotive Works from 1919 to 1929. This collection contains album pages with snapshot photographs recording a month long Canada-U.S. transcontinental railroad voyage taken in July and August 1922 by Mrs. and Mrs. Samuel Vauclain, their daughter, and granddaughter in their private car, "Manhattan."

Thomas Lansford Foster (1894-1956) was manager of export sales for Baldwin Locomotive Works in Eddystone, Pennsylvania. Baldwin Locomotive Works was a manufacturer of railroad locomotives from 1825 until 1972. This small colleciton consistate of five photographs showing Thomas L. Foster with other Baldwin staff and customers visiting the headquarters.

In its various iterations, the Boeing Vertol Company has been a major developer and builder of helicopters. These records reflect development, manufacture, testing, improvement, and sale of helicopters, especially for military use in Vietman. This includes information relating to reports on factories visited, military needs of the United States and foreign countries, sales, conferences, and meetings with military personnel, government agencies, and representatives of foreign countries.

John Joseph Beer (1927-) was a professor of the history of science and chemistry at the University of Delaware until his retirement in 1992. Beer played a major role in developing the university’s program in the history of technology and the Hagley Fellowship Program. The bulk of the papers consists of correspondence, notes, research materials, and drafts for a projected book or article on "Russia iron," a highly finished, wear-resistant iron produced in Russia during the nineteenth century.

Cooper & Hewitt partners were iron businessmen who purchased ironworks, property, and iron mines. In 1845, a rolling mill complex was incorporated as the Trenton Iron Company, and in 1847 iron mines at Andover, New Jersey, were purchased. The records consist of two payroll sheets from 1848, as well as eighty-two inbound letters, mostly from 1849 to 1850. The letters are primarily operating reports from the superintendent of the Andover mine.

Wallace Hume Carothers (1896-1937) was chemist and inventor of Neoprene artificial rubber and Nylon synthetic fiber. He worked as a chemist in E.I. du Pont de Nemours & Company's Fundamental Research Program from 1928 until his death in 1937. These items consist of four photographs preserved by Wilko Gustad Machetanz (1895-1973), Carothers's Tarkio College roommate and lifelong friend.

Crawford H. Greenewalt (1902-1993) was an executive with the DuPont Company and president of the firm from 1948 to 1962. The collection consists of photographs and other materials related to Crawford Greenewalt's career with the DuPont Company and his involvement with corporate boards and other business and scientific organizations, etc., such as Boeing, M.I.T., Smithsonian Institution, and Radio Free Europe.

Anthony Morris (1766-1860) was a lawyer and merchant of Philadelphia. Morris was active in the East India trade. This collection includes two letterbooks and one ledger. The letterbooks are mostly concerned with his business affairs. The letters date from 1787 to 1800. His ledger includes household accounts and records of expenses on voyages to China, India and England. The ledger dates from 1800 to 1806.

Anthony Morris (1766-1860) was a lawyer and merchant of Philadelphia. Morris was active in the East India trade. Morris's letters are largely concerned with business affairs, administration and sale of lands, and state politics. The letters date from 1800 to 1808.

Charles J. Pedersen (1904-1989) was a research chemist with E.I. du Pont de Nemours & Company who spent most of his career at the Jackson Laboratory in Deepwater, New Jersey, and the Elastomer Chemicals Department at Wilmington, Delaware. This notebook consists of notes in Pedersen's own hand, with extensive chemical formulas and diagrams of molecules, interspersed with copies of journal articles.

The major portion of a collection of railroad public and employee timetables amassed by railroad enthusiast and historian Edward H. Weber (1934-), best known for his systematic photography of railroad stations and structures. Although the oldest date from the nineteenth century, most cover the period of decline and restructuring of North American passenger service that began in the Depression and accelerated in the years after World War II.

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.

The Delaware Construction Company was a building company, constructing residential houses in downtown Wilmington, Delaware. It was founded in 1909 as a subsidiary of the National Real Estate Trust Company, which provided loans and financing for the properties. This small collection consists of five blueprints of houses by E. Olney Sherman, dated 1910 for Delaware Construction Co.

Francis “Frank” Pierre Gentieu (1876-1950) was a ballistic engineer at E.I. du Pont de Nemours & Company, a chemical company more commonly referred to as the DuPont company. Gentieu worked at DuPont's Carney's Point Plant in New Jersey from 1901 to 1941. This small collection contains an account by Gentieu entitled "The First Fifty Years at Carney's Point" (1891-1941); correspondence with du Pont family members; a list of his father Pierre Gentieu's photographs of the DuPont Company and Brandywine area; and a recollection written by Samuel Brown of a conversation with Sophie M. du Pont (1810-1888) related to the Brandywine Manufacturers Sunday School.

The Phoenix Iron Company began in the late eighteenth century as a manufacturer of cut nails. It later became a major producer of railroad rails and iron and steel structural members. This small collection of records includes incoming correspondence chiefly relating to orders for and deliveries of iron for railroads.

The Joseph D. Lovell Locomotive Rosters constitute a partial roster of Pennsylvania Railroad steam, electric and early diesel locomotives to 1946. The collection also contains seven small ledgers listing the production of not only the Juniata Shops, but also the earlier Altoona Machine Shops (1866-1904) and locomotives purchased from outside builders, principally the Baldwin Locomotive Works. His lists include rosters for both the Pennsylvania Railroad proper and its predecessor lines.

There is also a folder containing copies of letters and notes by Robert B. Watson documenting the provenance of the records.

The Phoenix Iron and Steel Company began in the late eighteenth century as a manufacturer of cut nails. It later became a major producer of railroad rails and iron and steel structural members. It operated as the Phoenix Iron and Steel Company from 1950 to 1959, when it was reorganized as the Phoenix Steel Corporation. This small collection primarily consists of a sample of letters received by president Samuel J. Reeves (1872-1878), primarily concerned with the Girard Avenue Bridge contract. There is also a volume of annual reports by the superintendent and a company history written by Catherine S. Sisto in 1950.

Irene "Sophie" Sophie du Pont May (1900-2001) was a churchwoman, a philanthropist, and a descendant of Pierre Samuel du Pont de Nemours (1739-1817) who founded the E.I. du Pont de Nemours & Company with his son Eleuthère Irénée du Pont (1771-1834) in 1802. The E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. The collection consists of Sophie du Pont May's family correspondence and financial correspondence as well as correspondence between her father Irénée du Pont (1876-1963) and his older sister Louisa d'Andelot du Pont Copeland (1868-1926).

This collection consists of five publicity photographs from the motion picture Stars and Stripes Forever. It was produced by 20th Century Fox and released in 1952. It tells the story of John Philip Sousa, portrayed by Clifton Webb.

J. Marsh Music, Fancy and Variety store was located on 117 Market Street in Wilmington, Delaware during the 1850s. The store sold, repaired and tuned instruments, as well as selling sheet music. This sheet music cover contains a black and white lithograph of the J. Marsh Wilmington, Delaware storefront, with people on the side walk, also showing musical instruments in the windows.

Samuel Francis du Pont (1803-1865) was an Admiral in the United States Navy and fought in the Mexican-American War and the Civil War. At the start of the Civil War du Pont was appointed a senior member of the Commission of Conference to establish naval operations for the North. du Pont was put in charge of the South Atlantic Blockading Squadron and broke his flag on the U.S.S. Wabash. This item is a hand-colored lithograph of the U.S.S. Wabash at sea.

This item is a manager training film. The film narrative is about a manager who is not in control and having problems and how he turns things around.

The Presidential election of 1932 was between Republican candidate and incumbent Herbert Hoover (1874-1964) and the Democratic candidate Franklin D. Roosevelt (1882-1945). This item is a small wooden puzzle, "The Presidential Puzzle," from the campaign of Herbert Hoover and Franklin D. Roosevelt in 1932.

A Liberty ship was a World War II EC2 type cargo ship designed for the emergency ship building program. Over 2,700 of these ships were built. This item is a photograph which shows a stern of EC-2 Liberty ship.

A booklet produced by the American Iron and Steel Institute's Committee of Steel Plate Producers in the 1960s to illustrate imaginative and attractive designs in constructing community water-storage structures with steel.

Anthracite is a metamorphosed type of coal that contains a high carbon content and is extremely hard, it burns slowly producing little smoke. This item is a viewbook or fold-out packet of twenty-seven black and white halftone photograph reproductions of various activities at a coal mine, images are connected by accordion folds published by Jones & Evans; Scranton News Company, distributors.

The Cavalcade of America television show was an anthology drama which aired on NBC from 1952 to 1953 and ABC from 1953 to 1957. The show was adapted from a radio show of the same name sponsored by the DuPont Company, a chemical company, which began as a manufacturer of gunpowder in 1802.This collections consists of two reels of television commercials for various DuPont products. The commercials feature various spokesmen talking about or demonstrating the products. One commercial features DuPont Company president Crawford Greenewalt.

Coatesville is a city along the Brandywine River in Chester County, Pennsylvania. This item is a booklet containing 16 postcards with images of sites in and around Coatesville, Pennsylvania.

World's Fairs or International Expositions are large-scale exhibitions that highlight technology, agriculture and other innovations of national or cultural significance. The New York World's Fair took place in Flushing Meadows, Queens from April 30, 1939 to October 31, 1940. The theme was "The World of Tomorrow." This item is the sheet music for the official song of the 1939/1940 New York's World's Fair.

E.I. du Pont de Nemours & Company was established in 1802 by Pierre Samuel du Pont de Nemours (1739-1817) and his son Eleuthère Irénée du Pont (1771-1834). Throughout the 1900s and 1910s, the company shifted its focus away from gunpowder production and towards chemistry innovations. This item is the Spanish language version of "Wonder World of Chemistry" which shows chemical products produced by the DuPont Company.

International Business Machines Corporation (IBM) became a giant in the field of electronic data processing by the mid-1950s after having achieved great success in the punch-card tabulating machine business in the 1930s. This is a sales film for IBM about the history of information technology.

Major Reybold was an iron excursion steamer, located in Philadelphia, Pennsylvania. This collection contains a photographic copy print of a painting of the steamship.

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. The company was established in 1802 by Pierre Samuel du Pont de Nemours (1739-1817) and his son Éleuthère Irénée du Pont (1771-1834) the company began with the production of gunpowder. This item is the film Making Blasting Caps which documents the process of making blasting caps.