Sophie Madeleine du Pont (1810-1888) was the youngest daughter of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828), and the wife of Samuel Francis du Pont (1803-1865). In the letter to Mary Ann (Hogg) Brunot (1822-1899), du Pont thanks her for a sermon Brunot sent and reflects du Pont's concern with religious and domestic matters.