Includes: land of Samuel Gregg, 239 acres on the Brandywine, New Castle County, Delaware, by Stuart Richey; Peter Hendrickson and John Simmons attestation concerning John Gregg's land boundries in New Castle County, Delaware; land purchased from Jacob Broom by E.I. du Pont in New Castle County, Delaware, showing the original plan for the powder mill; land included in an area between the Brandywine and the Wilmington & Kennett Turnpike, Delaware, showing the mills, with names, along the Brandywine; land and premises of the Brandywine Mill Seat Co. by Fairlamb & Read; land of E.I. du Pont in Christiana Hundred, Delaware, by Jonas P. Fairlamb; lands of the Du Pont family in Clearfield County, Pennsylvania, the Susquehanna River area, and at Angelica, New York; the fruit orchard of E.I. du Pont at Eleutherian Mills, in his own hand, with plantings of various trees indicated; and several unidentified plats.