Louise Evelina du Pont (1877-1958) was the daughter of Mr. and Mrs. Henry Algernon du Pont. In 1922 Henry A. du Pont purchased the original family home, Eleutherian Mills, for his daughter who, with her husband, began restoring the house and building a Renaissance garden adjoining it. This collection consists of twelve black and white photographs of Louise and Frank Crowninshield's garden at Eleutherian Mills, apparently taken by Horace Dugdale during a visit, circa 1938. Also two photographs of the abandon Hagley House which stood nearby.

Between 1802 and 1921, Eleutherian Mills was a gunpowder mill site used for the manufacture of explosives by the du Pont family business, which was founded by Éleuthère Irénée "E.I." du Pont (1771–1834). Longwood Gardens is a series of formal display gardens in Kennett Square, Pennsylvania, that was developed by Pierre S. du Pont (1870-1954), a descendent of E.I. du Pont. These are aerial views of the residence at Eleutherian Mills and Longwood Gardens taken by Dallin Aerial Surveys Company.

From 1802 to 1921, Eleutherian Mills was a gunpowder mill site used for the manufacture of explosives by the duPont family business. The name also refers to the house and gardens on the hill above the mills, which was the first duPont family home in America. This collections contains slides and color snapshot photographs of the garden at Eleutherian Mills. Also included is an 8 mm. home movie.

Charles Copeland (1867-1944) was Secretary of E.I. du Pont de Nemours and Company from 1921 to 1935. He also served on the Board of Directors from 1921 to 1942. This small collection primarily consists of scenic views of the Hagley property. The collection has been organized into three series: Brandywine and Hagley areas of Copeland estate; Rolling wheels, and Pierre Gentieu prints.

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.

Theophilus P. Chandler (1845-1928) was an architect, artist and professor. He designed churches, houses and bridges, trainstations and other structures, such as the bear pits at the Philadelphia Zoo. He married Sophie M. du Pont (1851-1931), daughter of Henry du Pont (1812-1889) and Louisa Gerhard (1816-1900), in March 1873. The collection consists of 4 wash drawings of various scenes at Eleutherian Mills, then the residence of Henry du Pont (1812-1889).