The Artillery Fuse Company of Wilmington, Delaware, was a special venture formed to supply ordnances during World War I and was a wholly-owned subsidiary of the Manufacturers Contracting Company. The records consist of scattered business records for the Manufacturers Contracting Company, the Artillery Fuse Company, and the later General Manufacturing Company.

Bill Mackey (1906-1996) was a chemical engineer and the plant manager of the Technical Division of the Explosives Department of the E.I. du Pont de Nemours & Company. His papers consist of a mix of personal and DuPont Company materials documenting his career as an explosives expert.

Delaware Steel and Ordnance Company, Inc. was a salvage corporation headquartered in New York, although its plant operations were in Delaware. The firm was chartered in 1915 when it took over the Diamond State Steel Company of Delaware. This item is a work log or diary of a post-World War I contractual operation engaged to remove and dispose of deteriorated ammunition from 1927 through 1928 at the Curtis Bay Ordnance Depot and the Raritan Arsenal. The log details the project from the initial contract, rules and regulations, weather summary, accidents, visitors, data, and other statistics of daily work performed by the Delaware Steel and Ordnance Company. Kenneth E. Cross (1898-1979), the compiler of the log, was hired to be an assistant to the superintendent at Curtis Bay Ordnance Depot.

E.I. du Pont de Nemours & Company Repauno Works manufactured high explosive dynamite. The company began as the Repauno Chemical Company on June 7, 1880 founded by Lammot du Pont (1831-1884). Lammot du Pont was a chemist working for the family business, E.I. du Pont de Nemours & Company, a chemical company which originally produced gunpowder. This collection consists of material for the 100th anniversary of the E.I. du Pont de Nemours & Company Repauno Works.

Hudson Maxim (1853-1927) was an inventor and chemist best known for his work in the development of smokeless gunpowder and military explosives. The papers consist primarily of Maxim's published and manuscript writings from the period between 1907 and 1926. The writings range in topics: Napoleon, the future of naval and aerial warfare, and social Darwinism and anti-immigration.

Pierre Samuel "P.S." du Pont (1870-1954) was president of E.I. du Pont de Nemours & Co. (more commonly known as the DuPont Company or simply DuPont) from 1915 to 1919 and chairman of the board from 1919 to 1940. P.S. du Pont was the great grandson of Eleuthere Irenee du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company. He was also an avid collector of documents on the early history of the du Pont family and the DuPont Company. This collection contains elements which were selected from both company and family papers. The material was lodged in du Pont's Wilmington office for a number of years prior to his death in 1954.

The collection consists of a handwritten volume, in Italian, on the construction, testing, and use of ordnance during war in Naples, Italy.

This series holds William Henry's Revolutionary War papers, when he served as Assistant Commissary General and also Superintendent of Arms and Accoutrements, a position in which he established workshops in various parts of Pennsylvania and directed the making of boots, shoes, hats and firearms. The records include correspondence, accounts, and receipts concerning weapons, shoes, leather, tallow, clothing and recruits.

Bethlehem Steel Corporation's World War One ordnance plants (Bethlehem Loading Company) were located in Redington, Pennsylvania, May's Landing, New Jersey ("Belcoville"), and New Castle, Delaware.