Hagley Museum near Wilmington in New Castle County, Delaware — The American Northeast (Mid-Atlantic)
Beyond the Brandywine
DuPont black powder shaped and reshaped the United States and the world. Powder produced by DuPont was used in building the Erie Canal and the Transcontinental Railroad. It was loaded into firearms and artillery of the United States military in the American Civil War and World War I. And it was used for construction, mining, clearing land for farming, and other purposes for generations.
Throughout the 19th and 20th centuries DuPont expanded beyond powder making on the banks of the Brandywine. Within a generation, DuPont had agents throughout the United States, South America, Africa, and Asiaeverywhere but Europe. In the 19th century the du Pont family and DuPont Company experimented in industries from explosives to wool production and many others. In the 20th century, the company expanded into chemical research, creating products like Nylon, Teflon, and Kevlar.
Hagley tells stories of the du Pont family and DuPont Company from their arrival in the new United STates to the early 20th century. As you explore Hagley you will uncover centuries of innovation that shaped the nation in countless ways. Black powder is just the beginning.
Erected by Hagley Museum and Library.
Topics. This historical marker is listed in this topic list: Industry & Commerce.
Location. 39° 46.661′ N, 75° 34.44′ W. Marker is near Wilmington, Delaware, in New Castle County. It is in Hagley Museum. It can be reached from the intersection of Hagley Creek Road and Blacksmith Hill Road, on the right when traveling north. Touch for map. Marker is at or near this postal address: 301 Hagley Creek Rd, Wilmington DE 19807, United States of America. Touch for directions.
Regionally, this marker is in Greater Philadelphia. It is also in the American Mid-Atlantic, on the Delmarva Peninsula, and on the Eastern Seaboard. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Netherland and also one of the original Thirteen Colonies.
Other nearby markers. At least 8 other markers are within walking distance of this marker: The DuPont Company Grows Quickly (here, next to this marker); Sourcing Materials
Credits. This page was last revised on April 28, 2025. It was originally submitted on April 28, 2025, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 103 times since then and 11 times this year. Photos: 1, 2. submitted on April 28, 2025, by Devry Becker Jones of Washington, District of Columbia.

