Clement S. Brinton (1875-1963) was a trained chemist who spent his entire career with the Food & Drug Administration designing and directing food inspection laboratories in the Philadelphia area. Brinton was also a local amateur historian and was particularly interested in the history of the eighteenth- and nineteenth-century iron industry. The Brinton Collection is a useful source on the early iron industry in the northeastern states. The materials are, in many cases, not unique, including such items as postcards, newspaper clippings, souvenir booklets and brochures, and extracts from published articles. The collection focuses on old iron works in New Jersey, southeastern Pennsylvania, and northeastern Maryland.