Ernst R. Habicht (1902-1987) was the general manager of E.I. du Pont de Nemours & Company's ammonia production plant at Belle, West Virginia. His papers include newspaper clippings, correspondence, a long memorandum, and a humorous poem by Habicht relating to the 1947-1948 strike at the Belle plant.

Chartered in 1871, Reading Company was the holding company for the system of railroads, canals and coal mines assembled by the predecessor Philadelphia & Reading Railroad Company between 1833 and 1896. The collection consists of the corporate records of the Reading Company (1871-1976), the Philadelphia & Reading Railroad Company (1833-1896), the Philadelphia & Reading Railway Company (1896-1923), and 159 predecessors and subsidiaries.

United Mine Workers of America is a labor union that represents coal miners. It was founded in 1890 and continues to be active. This color transparency of the United Mine Workers of America membership certificate that has various images along the boarders that depict coal miners' handshakes and rites of passage.