Frank P. Miller (1859-1923) started his first paper mill near Downingtown, Chester County, Pennsylvania in 1881. His company was known as the Downingtown Paper Company, or "Dopaco," from 1924 until it became a subsidiary of Sonoco Products Company in 1968. After a fire in 2005, Sonoco permanently closed the mill, which by that time was producing paperboard. The Downingtown Paper Company collection, 1839-1980 (bulk 1880-1924), consists primarily of financial records from the Frank P. Miller Paper Company era; there are also some later records of Downingtown Paper Company (Dopaco), especially relating to longtime employee Thomas Brookover. A detailed inventory of the collection is available on-site.
Held at: Downingtown Area Historical Society [Contact Us]