Horace Holden Thayer, Jr. (1878-1959) was a naval architect, mechinical engineer, and businessman. Between 1909 and 1914 Thayer worked for the Delaware Construction Company which was a building company, and a subsidary of the National Real Estate Trust Company, which provided loans and financing for the properties. This small collection consists of papers relating to Thayer's early work with the National Real Estate Trust Company and the Delaware Construction Co. These materials document the formation of the National Real Estate Trust Company and building specifications for the Delaware Construction Co. There is a small amount of papers related to the businesses of his father-in-law Thomas H. Savery (1837-1910), specifically the Harpers Ferry Paper Company and the Shanandeoah Pulp Company.

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. 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 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.

The Savery family of Chester County, Pennsylvania, produced two generations of eminent mechanical engineers. The Savery family papers consist primarily of those of Thomas H. Savery (1837-1910), his son William H. Savery (1865-1949), and William H. Savery's daughter Sara L. Savery (1897-1979) conerning the family papermaking machinery businesses, financial investments, and real estate activities documented through both personal and professional correspondence, business records, blueprints, and reports.

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. This collection consists of two checkbook stubs dating from 1892 to 1896.

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 ship builder and manufacturer of papermaking machinery in the late nineteenth and early twentieth centuries. Thomas H. Savery, Jr. (1871-1930), the second son of Savery, followed in his father's footsteps in the pulp and paper industry. The records consist of two private journals from the youth of Thomas H. Savery and his son, Thomas H. Savery, Jr.

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.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a ship builder and manufacturer of papermaking machinery in the late nineteenth and early twentieth centuries. Copies of patents and correspondence relating to patents and royalties on inventions in papermaking, including the use of devices patented to others.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a ship builder and manufacturer of papermaking machinery in the late nineteenth and early twentieth centuries. This collection is two volumes of Savery's original and published patents issued to him for papermaking machinery dating between 1868 and 1906.

William H. Savery (1865-1949) was a paper manufacturer and president of the Harpers Ferry Paper Company, the Harpers Ferry Electic Light Company, and the Shenandoah Pulp Company. He was also president and general manager of the Parsons Engineering Company. The collection documents Savery's involvement with the Parsons Engineering Company, the York Haven and Harpers Ferry Paper Company from 1899 to 1920.