HORN ISLAND (GULF ISLANDS NATIONAL SEASHORE, NPS)
Historic Site — 3500 Park Road, Ocean Springs, Jackson County, Mississippi
Status: Operating · Access: Open to public
Dossier: https://haunthunt.com/place/horn-island-gulf-islands-national-seashore-nps-mississippi/

NPS-listed historic site associated with the Underground Railroad.

A historic site in Ocean Springs, Mississippi, a National Underground Railroad Network to Freedom listing, Horn Island (Gulf Islands National Seashore, NPS) is filed here for what the record attaches to it. NPS-listed historic site associated with the Underground Railroad. It sits in the archive under dark history, Underground Railroad history and the Underground Railroad. The dossier holds 2 documented facts — a documented spine with no haunting reports attached. The site is open to visitors.

Horn Island is the barrier island that tested weapons the mainland couldn't know about. From October 1943 to July 1944, the Army's Chemical Warfare Service ran a quarantine station on the island ten miles off Pascagoula — roughly two hundred scientists and technicians, a state-of-the-art necropsy facility, animal holding pens, and a 7.6-mile narrow-gauge railway hauling equipment across the sand to the test grid. The island was picked for isolation; the catch was discovered late — for two-thirds of the year the prevailing wind blew toward the populated coast.
The twenty-three tests were, by the record, a failure — bombs filled with botulinum toxin detonated over grids of caged guinea pigs failed to disperse the agent, and the animals lived. The station closed, the equipment went to Camp Detrick, and the island's second toxic chapter followed: in 1946-47, Operation Hornblow burned more than 130 leaking captured German mustard-gas bombs in shallow trenches — ruptured with rifle fire, ignited with oil-soaked rags, the empty casings barged out and dumped at sea.
Before and after the Army, the island kept its quieter records — the powder horn a French sailor lost in the 1600s that named it, the lighthouse keeper Nelson and his family lost when the 1906 hurricane blew the light away, and in the 1950s the painter Walter Anderson, who rowed out alone to live among the dunes and made Horn Island his great subject. The wilderness designation protects the whole strange record — the dunes where the test grid ran, the shore where the keeper wouldn't leave, and the emptiness Anderson crossed to paint.
Horn Island is the archive's quarantine file — the Mississippi barrier island where the Army ran a secret chemical-warfare station in 1943-44 and burned captured German mustard bombs in 1946, between the lighthouse the hurricane took and the wilderness Walter Anderson painted.

WHY THIS FILE MATTERS
Horn Island is the archive's secret-station file — the Gulf Islands barrier island where chemical weapons were tested in WWII and captured mustard bombs destroyed after it, now wilderness under the National Seashore.
An island the Army picked for isolation keeps its wind — the file's suggestion being that Horn Island's hold is the direction the air blew: toward the mainland, ten miles away, while the tests ran and the guinea pigs lived.

HISTORY — 2 documented facts
· NPS includes this site in the National Underground Railroad Network to Freedom. Horn Island (Gulf Islands National Seashore, NPS)'s past is on record — the entry belongs to the verified layer the museum itself interprets. The record holds it as fact — documented, not retold. The record appears in 'Public NPS Network to Freedom listings, row 2, ID 01GA01'. Documented ground is what separates this file from pure legend — this is part of it.
· Horn Island (Gulf Islands National Seashore, NPS) is documented on the National Park Service Network to Freedom for its role in the Underground Railroad. Horn Island (Gulf Islands National Seashore, NPS)'s past is on record — the entry belongs to the verified layer the museum itself interprets. This belongs to the verified spine of the entry, the layer everything else is measured against. The detail is preserved in 'NPS Network to Freedom listing'. It anchors the timeline the rest of the file hangs from.

SOURCES — 3 cited
· Public NPS Network to Freedom listings, row 2, ID 01GA01 — National Park Service
  https://www.nps.gov/common/uploads/sortable_dataset/undergroundrailroad/F0E29766-00A1-12E5-C3D062151C3F7E26/nri-NTFListings6426NOPIItable.csv?t=1784017173223
· NPS Network to Freedom listing — National Park Service
  https://www.nps.gov/subjects/ugrr/index.htm
· Underground Railroad — Wikipedia
  https://en.wikipedia.org/wiki/Underground_Railroad

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