Eugene du Pont (1840-1902) was the eldest son of Alexis I. du Pont (1816-1857) and Joanna Smith du Pont (1815-1876) and joined the E.I. du Pont de Nemours & Co., eventually rising to president in 1899. The bulk of the papers in this small collection are letters sent to Eugene du Pont by his mother while he was in school in Philadelphia from 1857 to 1859.