Alexander Duer Irving Jr. (1873-1941) was assigned as a junior naval aide to President Woodrow Wilson (1856-1924) on his trip to the Paris Peace Conference, primarily because of his knowledge of French. He served with the rank of lieutenant under Wilson's personal physician, Admiral Cary T. Grayson (1878-1938). The papers record details of protocol at the signing of the Treaty of Versailles. Irving gives much social detail of formal affairs attended and the intricacies of protocol. He reports background information on French labor unrest, the high cost of living, and the fear of Bolshevist infiltration.

Alexander Duer Irving, Jr. (1873-1941) was assigned as a junior naval aide to President Woodrow Wilson (1856-1924) on his trip to the Paris Peace Conference, primarily because of his knowledge of French. He served with the rank of lieutenant under Wilson's personal physician, Admiral Cary T. Grayson (1878-1938). This small collection contains materials relating to his work while serving as aide to President Wilson during the Peace Conference in France, 1919.

The Chamber of Commerce of the United States is the world’s largest business organization representing the interests of more than 3 million businesses of all sizes, sectors, and regions. This collection contains photographs, negatives, slides, digital images, sound recordings, videos, and films that document the history of the Chamber from its founding to the twenty-first century. The materials provide a record not only of the activities of the Chamber but also of the political landscape surrounding key issues related to business. The collection focuses on the legislation, regulations, and litigation impacting the economy, immigration reform, pensions, health care, trade, Social Security, air quality, global warming, workplace safety, and taxes, as well as major industries such as energy, aviation, automobiles, agriculture, transportation,mining, shipping, and technology.

E.B. (Edward Barnes) “Ted” Leisenring Jr. (1926-2011) was the CEO of a fourth-generation family coal-mining business. He was president of Westmoreland Coal from 1961 to 1988, and remained as chairman of the board until 1992. This small collection of photographs is from Leisenring’s personal office files, which date between 1954 and 1994. The photographs consist of group and individual portraits, snapshots. The bulk of the material centers around two events: the 1964 Westmoreland Coal Company expansion and the 1970 delegation to the USSR.

This series contains Elmer Sperry's correspondence with a number of prominent scientists, politicians and business people. Letters to Herbert Hoover and John D. Rockefeller, Jr., outline Sperry's political, economic, and social world views. Correspondence with Albert A. Michelson (University of Chicago), David Eugene Smith (Columbia University) and Elihu Thomson (Thomson-Houston Company) develops Sperry's ideas about the relationship between science and technology. Also included is a letter to Mussolini.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The collection contains a letter du Pont wrote to Howard M. Jenkins (1842-1902), editor of Friends intelligencer (Philadelphia) concerning the nomination of John Hunn (1849-1926) as the Republican candidate for governor of Delaware.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. On July 21, 1896, du Pont wrote a letter to John C. Higgins (1838-1924) congratulating him on his nomination for Governor of Delaware for the Republican Party.

Henry du Pont (1812-1889) was an American military officer and son of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828). In 1854, du Pont wrote a letter to Senator John M. Clayton (1796-1856), requesting assistance in securing an appointment for his son, Henry A. du Pont (1838-1926), to the United States Military Academy at West Point.

John G. Townsend Jr. (1871-1964) was a politician, a businessman, and a banker. He served as Governor of Delaware from 1917 to 1921 and as Delaware’s U.S. Senator from 1929 to 1941. He operated a lumber business, cannery, orchard, and then a large poultry farm called Townsend Inc. Farms. This small collection documents Townsend’s work in politics and in the poultry industry. There is a fair amount of biographical information authored by Louise Stanton Johnson, who worked as Townsend’s secretary during his time as Senator. The collection has been arranged into four series: Governor and Senatorial papers; Townsend Inc. Farms records; Louise Stanton Johnson papers and Printing plates and seals. The materials in the collection date from 1908 to 1977, with a bulk of the materials from the 1930s through the 1950s.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. He was an advocate for a national educational system and promoted Franco-American trade relations. In 1800, du Pont de Nemours emmigrated to the United States with his sons. This item is a letter from du Pont de Nemours to Claude-Antoine Guyot des Herbiers (1745-1825), a French writer, lawyer, and politician. The letter is written in French and congratulates Guyot des Hebiers on a recent political nomination.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. The letter he wrote to Philippe Albert Stapfer (1766-1840), Ministre de l'Interieur de la Republique Helvetique, concerns the Swiss political system and public educational system.

Pierre Samuel du Pont, IV (1935 -2021), known by many as "Pete," was the sixty-eighth governor of Delaware from 1977 to 1985. In 1987, du Pont started his campaign for president, running as a Republican candidate. After his withdrawal from the presidential race, Pete du Pont resigned from politics and became a partner at Delaware law firm Richards, Layton & Finger. Du Pont was a published writer and member of several academic and political institutions throughout his life and professional career. The collection is predominantly textual material, the bulk of which is du Pont's published writing and professional correspondence as a politician and lawyer. There are photographic prints included that document du Pont's personal life with his family and general du Pont family legacy media coverage. The video portion chronicles du Pont's public appearances, as well as television programs and forums that highlight general conservative talking points, and the work of the National Center for Policy Analysis. The material spans from the mid-twentieth century to the early twenty-first century.

Photograph of President Calvin Coolidge (1872-1933), Governor John G. Townsend, Jr. (1871-1964) of Delaware, Senator Lewis Heisler Ball (1861-1932) of Delaware and a group of unidentified women standing infront of the White House.

Thomas Woodnutt Miller (1886-1973) served as Delaware's Congressman in the 64th Congress (1915-1917) and spent the majority of his career in Republican Party politics, serving primarily in non-elected roles. The Thomas W. Miller papers are exclusively focused on his term in the 64th Congress. They include copies of bills introduced by Miller and reports from the Committee on Claims and the Committee of Accounts, on which he served. The papers also reflect the political influence of the DuPont Company at the time.

Wendell Lewis Willkie (1892-1944) was an American lawyer and utilities executive who served as the Republican Party nominee in the 1940 presidential election. This item is an amateur silent film by an unidentified filmmaker depicting scenes of Willkie's presidential campaign parade in downtown Wilmington, Delaware.

William P. Brobson (1786-1850) was an attorney, editor, and politician in Wilmington, Delaware. This is a copy of his diary on two reels of mirofilm. Brobson's diary contains details of his person life, but also reflects his political interests and includes his comments on current events, particularly during the John Quincy Adams (1767-1848) administration and the rise of Andrew Jackson (1767-1845).