Wilmington

Wilmington, Delaware, sits at the confluence of the Brandywine Creek and the Christina River, a few miles above where they empty into the Delaware River. That geography made it one of the most strategically important locations in the mid-Atlantic during the Revolutionary War — and the reason the largest land battle of the entire war in the northern theater was fought in its immediate hinterland.

On September 11, 1777, the Battle of Brandywine was fought at Chadd's Ford and the surrounding creek crossings, roughly ten miles northwest of Wilmington. The British army of approximately 17,000 men under General William Howe defeated Washington's 11,000-man Continental Army in the largest single-day engagement of the Revolutionary War in the north. Cornwallis's flanking column crossed the creek at unguarded fords, struck the American right wing, and drove it from the field. Washington's army retreated north and then west, eventually reaching Valley Forge. Philadelphia fell eleven days after Brandywine.

What makes Wilmington's story more complicated than a simple defeat narrative is what happened before and after the battle. In the weeks preceding Brandywine, Wilmington functioned as Washington's primary supply base for the campaign to defend Philadelphia. The town's mills — flour mills, paper mills, powder mills along the Brandywine — were essential to the Continental Army's logistics. The Brandywine's waterpower had been driving mills since Swedish settlers arrived in the 1630s, and by 1777 the valley was the most productive milling region in North America. When Howe captured Wilmington after Brandywine, he captured not just a town but a supply system.

The British occupation of Wilmington lasted from September 1777 until June 1778, when France's entry into the war forced Clinton to evacuate Philadelphia. During that period, the town served as a British base and hospital, with wounded soldiers treated in buildings that had weeks earlier been organizing supplies for the Continental cause. The occupation divided the town's Quaker community sharply: some Quakers had aided British scouts with local knowledge of creek crossings before the battle, while others quietly supported the Patriot cause in ways short of bearing arms. Both groups faced community discipline from their monthly meetings.

After the British evacuation, the Brandywine mills resumed supply operations through Yorktown. The du Pont family — arriving in 1802 — built on this milling tradition, but the Revolutionary-era industrial base was already in place before independence was won. Wilmington's Swedish and Finnish settler heritage, dating to 1638, gave it nearly 140 years of accumulated community infrastructure by 1777, making it genuinely valuable as a supply point rather than merely convenient geographically.