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.

Betts & Seal was an iron foundry in Wilmington, Delaware that operated under that name from 1857 to 1867, but was established in 1828. The Betts family of Wilmington, Delaware, produced three generations of innovative founders and machinists. The records of Betts & Seal cover the operation of the foundry from 1828 to 1867. The result is a rare time-capsule look at the workings of a small but innovative foundry during the first phase of American industrialization.

Carter Litchfield (1932-2007) an organic chemist who studied and specialized in edible fats and oils. This collection of photographs and ephemera relates to Litchfield's activities as a scientist, historian and collector of the history of fatty material. There is also a large amount of advertisements, letterheads, postcards and trade cards.

Carter Litchfield (1932-2007) an organic chemist who studied and specialized in edible fats and oils. In the course of his career Litchfield also built an interesting and significant collection of books, manuscripts, and ephemera relating to the history of fatty materials. The collection is arranged into seven series and includes his research with animal fats and fatty materials, collecting activities, research and publication on the history of oil mills around the world; the papers of Julius Lewkowitsch, the first authority on fats and fatty materials; the papers of Ellsworth C. Warner, founder of the Midland Linseed Products Company; and the correspondence of Frech Chemist Michel Eugène Chevreul

The Christiana Machine Company was a small, general purpose machine shop and foundry located in Christiana, Lancaster County, Pennsylvania. This small collection includes incoming and outgoing correspondence related to orders following the buyout of Nathan F. Burnham's interest by the Broomells in January 1889.

The Christiana Machine Company is a small, general purpose machine shop and foundry located in Christiana, Lancaster County, Pennsylvania. Their records cover the operation of the company under the Broomells and Burnham from 1877 to 1915 and are typical of the records of a small machine shop.

Account books were maintained by individuals and business as a way to keep track of financial transactions. This collection includes thirty-eight account books from twenty-five different businesses and individuals in the Delaware, Maryland, and Pennsylvania area, with one additional account book from San Francisco County, California.

Orlando Wootten (1909-1997) was the photographer for the Salisbury (Maryland) Daily Times and Wicomico Historical Society. Collection consists of documentary views of three flour and feeds mills from the Delmarva area

Stewart Huston (1898-1971) began his career as a metallurgist and worked in varying capacities in the family business, Lukens Steel Company, in Coatesville, Pennsylvania, from 1923 until his death. Assembled by Huston, the collection relates to genealogy and family history.

The Mill at Anselma is a custom grain mill in Anselma, Chester County, Pennsylvania. This collection consists of seven oral history interviews conducted in 1982 and 1986 with individuals familiar with the Mill at Anselma. Most are members of the Collins family (the last residents of the mill), as well as other Chester County citizens. The interviews mainly focus on the mill, how it operated, and its service to the county, but also include numerous personal stories recounting life in early twentieth century rural Pennsylvania.

The collection primarily consists of images featuring the Marshall family and their relatives and friends, both in formal group portraits and more casual poses.