FORT JEFFERSON
Fort Former Prison — Key West, Florida
Status: Historic site · Access: Open to public · est. 1846
Dossier: https://haunthunt.com/place/fort-jefferson-florida/

Unfinished island fort used as a Civil War military prison.

Fort Jefferson is a fort and former prison in Key West, Florida, built in 1846. Unfinished island fort used as a Civil War military prison. The name the accounts keep returning to is Dr. Samuel Mudd (attributed). The dossier holds 1 reported claim, 1 legend, 2 documented facts and 1 named or described presence — documented record and retelling kept side by side. The site is open to visitors.

Fort Jefferson is the largest brick masonry structure in the Americas — a hexagonal fortress in the Dry Tortugas, seventy miles past Key West, built 1846–1875 and never finished. The ocean was its wall; the isolation was its design — a prison the Army built where escape meant seventy miles of open water.
The file's documented prisoner is its most famous: Dr. Samuel Mudd, held here 1865–1869 for setting John Wilkes Booth's broken leg — the Lincoln conspiracy's most argued conviction, served in the moat-walled fortress at the reef's edge.

DR. MUDD'S CASEMATE
Local lore describes apparitions of prisoners — including Dr. Mudd — in the casemates and on the moat wall, retold in Key West ghost-tour coverage. The file's ghost is the prisoner who famously protested his innocence: a doctor convicted of conspiracy, still reportedly in the cell the Army gave him.
The Civil War prisoners — Union deserters among them — complete the register: a fortress-prison at the sea's edge, holding deserters and a convicted conspirator, keeping them reportedly still.

WHY THIS FILE MATTERS
Fort Jefferson is the archive's island-prison file — America's biggest brick fort, never finished, holding Dr. Mudd among its documented prisoners, seventy miles from anywhere. The apparitions in the casemates are the lore; the Mudd imprisonment is the record.
A fortress the sea walls, a doctor who swore he was innocent, a ghost tour that keeps his cell — the file's suggestion being that Mudd's appeal is still pending.

FILED CLAIMS — 1 on record, reported not verified
· [Local folklore] haunting: Local lore describes apparitions of prisoners—including Dr. Mudd—in the casemates and on the moat wall—retold in Key West ghost-tour coverage. The lore gives it a name — Dr. Samuel Mudd (attributed) — which is what turns a report into a resident. The reports at Fort Jefferson are the site's second history — unofficial, unverified, and stubbornly retold. It circulates as local folklore — the kind communities keep rather than verify. The account appears in 'Florida haunted places listicle'. It's the kind of claim that outlives debunkings — too many witnesses, too few explanations.
  source: Florida haunted places listicle (https://www.onlyinyourstate.com/florida/haunted-places-in-fl/)

HISTORY — 2 documented facts
· Construction continued from 1846 to 1875 without completion. Civil War prisoners included Union deserters and Samuel Mudd. The Army later abandoned the post. A documented history gives the file real substance; this entry is part of that spine. This belongs to the verified spine of the entry, the layer everything else is measured against. The record appears in 'Fort Jefferson'. Documented ground is what separates this file from pure legend — this is part of it.
· [1846-01-01–1869-03-01] Fort Jefferson was built 1846–1875; it held Civil War prisoners including Dr. Samuel Mudd (1865–1869). The record dates it to 1846-01-01–1869-03-01. A documented history gives the file real substance; this entry is part of that spine. The fact is historically verified — the part of the file that doesn't need hedging. The record appears in 'Dry Tortugas National Park'. It is the kind of fact the rest of the dossier leans on.

SOURCES — 3 cited
· Fort Jefferson — National Park Service
  https://www.nps.gov/places/fort-jefferson.htm
· Dry Tortugas National Park — National Park Service
  https://www.nps.gov/drto
· Florida haunted places listicle — OnlyInYourState
  https://www.onlyinyourstate.com/florida/haunted-places-in-fl/

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HauntHunt is a research archive. Claims are filed as reported — documented where sources exist, marked as folklore or unverified where they do not.
Methodology: https://haunthunt.com/methodology/ · Corrections: https://haunthunt.com/report/