The Hendrick Manufacturing Company was the nation's largest manufacturer of perforated screens. This small collection consists of photographs which primarily show exterior views of the plant, and some interior views as well as photographs of the company's products and personnel.

The Hendrick Manufacturing Company was the nation's largest manufacturer of perforated screens. The company was founded by an inventor and entrepreneur, Eli E. Hendrick (1832-1909) in 1885 in Carbondale, Pennsylvania and remained in the hands of Hendrick's descendants until the 1980s, when it was sold. Hendrick's business ventures also included refining lubricating oils and cold storage refridgeration for argricultural produce. This collection consists of records detailing businesses founded by Hendrick and his descendants, including lubricating oil, refrigeration, and metal perforation, especially the Hendrick Manufacturing Company.

The William Shinn & Co. installed stamped sheetmetal ceilings, cornices, skylights, roofing, and ductwork and employed about a dozen workers and apprentices. It was founded in 1907 in Wilmington, Delaware by William Shinn (1883-1947), a tinsmith and cornice worker, and his brother John A. Shinn (1886-1955). The records are a very small sample of accounting items documenting the operation of a handicraft contracting business.