First drawing of the du Pont powder mills, done in 1806 by Charles Dalmas, du Pont's brother-in-law and a workman in the mills. Houses and stores for the workers and their families are also shown. Courtesy Hagley Museum and Library.
First drawing of the du Pont powder mills, done in 1806 by Charles Dalmas, du Pont's brother-in-law and a workman in the mills. Houses and stores for the workers and their families are also shown. Courtesy Hagley Museum and Library.