A. Sonnin Krebs (1877-1969) was a chemical engineer and president of the Krebs Pigment & Chemical Company. This collection contains twenty-one letters to Krebs, primarily personal in nature, and include letters from Pusey & Jones Company, William Sellers & Co., Jacob A. Riis (1849-1914), and E.A. Wilson.

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.

The Pusey & Jones Corporation were shipbuilders, founders, and machinists of Wilmington, Delaware, which later expanded into papermaking machinery manufacturing. The Parsons Engineering Company was established for the manufacture of smoke-consuming devices and innovations with railroad technology. This collection includes papers from the Pusey & Jones Corporation and Parsons Engineering Company.

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. The collection is a plat of the property around Pusey and Jones Company plant in Wilmington, Delaware.

The Savery family of Chester County, Pennsylvania, produced two generations of eminent mechanical engineers. Savery family papers consists of materials of the eldest son William H. Savery's (1865-1949) diaries, his father Thomas H. Savery (1837-1910) correspondence and notebooks documenting his career as a mechanical engineer, and the documents relating to Savery/Webb family property near Longwood Gardens, Hamorton and Parkerville, Pennsylvania.

Personal and business diaries of Thomas Savery documenting his career from 1864 to 1910 that include technical drawings and experimental data used in developing his patented papermaking machinery. Savery's career as machine shop foreman and general manager at Pusey & Jones is also described. The day to day activities of the shops in which he worked are detailed as well as his income, expenses, and investments. Among projects noted is the construction of Machinery Hall at the 1876 Centennial Exhibition. There are also discussions of his involvement in the Harper Ferry Electric Light & Power Company, York Haven Water & Power Company and York Haven Paper Company. There is a volume detailing his involvement in the Denver pulp and paper industry. Savery's involvement with the Wilmington Board of Trade and the Society of Friends are described in these volumes. There are also numerous notations on his personal and cultural life.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a shipbuilder and papermaking machinery manufacturer in the late nineteenth and early twentieth centuries. In 1864 he married Sarah Pim Savery (1837-1928). This collection consists of ther business and personal papers of Thomas H. Savery, primarily related to his papermaking machinery ventures, and twenty-nine diaries of Sarah Pim Savery.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a major ship builder and manufacturer of papermaking machinery in the late nineteenth and early twentieth centuries. The papers are a fragmentary collection of Savery's diary, correspondence, and financial papers. The materials document his early career, papermaking machinery business ventures, some personal correspondence, and speeches.