Fort Delaware on Pea Patch Island — The Moat of the Departed
A granite Civil War fort in the Delaware River held thousands of Confederate prisoners in 1863; its moated walls now host tours where visitors report voices, cold zones and figures on the ramparts.
Case File No. 345
FILE 01 The Legend
Pea Patch Island's first fortification rose in 1815 on a river shoal whose name — legend insists — came from a cargo of peas that sprouted after a wreck. The current granite pile was begun in 1848 and finished in 1859, a three-tiered casemate fort surrounded by a broad moat, built to guard the approach to Philadelphia. The Civil War remade its purpose: after Gettysburg, Fort Delaware became a prison for captured Confederates — camp population peaked above ten thousand in August 1863, and fort records put prisoner deaths above two thousand, most from disease in a marsh-river climate, with burials initially on the New Jersey shore at Finn's Point. The post-war decades returned the island to garrison duty, and the state park era began in 1951, when the ferry and the first interpreters arrived. The haunting canon is modern and specific: Delaware's park interpreters have run ghost-oriented evening programs on the island for decades, built on staff and visitor reports — apparitions in the casemates and tunnels, a searched-and-empty cell block, cold spots on the parapet, and the sound of men where no men are.
FILE 02 The Sightings Log
Fort staff and ferry-going visitors have reported cold zones in the tunnels, voices in the casemates, and figures in period dress seen on the ramparts from the deck of the tour boat; the island's volunteer lantern tours, run since the 1980s, collect new reports most seasons. Reports cluster in the prisoner-hospital arcades and the sally-port tunnel.
FILE 03 The Skeptic’s File
The fort is a national-caliber historic site whose evening lantern tours are heritage programming, and the moat-and-casemate architecture produces genuine drafts, echoes and cold zones. 'Figures in period dress' are often interpreters or re-enactors in an era of costumed programming. What is documented is the death toll from disease — a real, sorrowful statistic — and the leap from dysentery statistics to ghosts is exactly the leap the tours invite visitors to make for themselves.
BEYOND THE CASE FILE / PLAN A VISIT