Louise Evelina du Pont (1877-1958) was an heiress and preservationist, who was the great granddaughter of Eleuthère Irénée du Pont (1771–1834), the founder of E. I. du Pont de Nemours and Company. She was the last du Pont to live on the Eleutherian Mills estate. This collection consists of photographic and graphic materials primarily of Crowninshield's extended du Pont family and friends. The collection has been organized into four series: Family portraits, Travel photographs, Residences, and Mary Pauline Foster du Pont sketches and collection of travel souveniers.

Victorine Elizabeth du Pont Foster (1849-1934), daughter of Henry du Pont (1812-1889) and Louisa Gerhard du Pont (1816-1900), grew up at Eleutherian Mills, near Wilmington, Delaware. The drawing is a detailed plan of the formal garden at Eleutherian Mills. Placement of trees, flowers, and vines, etc., are indicated on the drawing.