Reviewed by Josh N · Updated September 29, 2026 · How we verify
Reported Phenomena
- Apparitions in period dress
- Boy at upstairs window
- Disembodied whispering
- Cold spots
- Unexplained touches
- Electromagnetic anomalies
Reported by visitors & local legend. Stories, not verified claims.
The Spy House sits at the edge of Sandy Hook Bay in Port Monmouth, a section of Middletown Township in New Jersey, and almost nothing about its popular name is true. The building’s real name is the Seabrook-Wilson House. It was never a Revolutionary War tavern, it was never a nest of patriot spies watching British ships, and the ghost tours that once ran through it by candlelight were the work of a part-time caretaker with a preservation problem to solve. What remains is genuinely old, genuinely interesting, and still open to visitors on summer Sundays.
Quick orientation: the house stands at 119 Port Monmouth Road, inside Monmouth County’s Bayshore Waterfront Park. It was added to the National Register of Historic Places on October 29, 1974, cited for its significance in social history and transportation, not for espionage. It is one of the oldest surviving houses on the Bayshore.
Whitlock’s Cabin and 250 Years of Seabrooks
Thomas Whitlock, who came to North America in 1641 and first lived in Brooklyn, built a house on this ground in 1663. That building no longer exists. It was a one-and-a-half story, one-room cabin, and Whitlock lived in it with his family.
The structure visitors walk into today is later. The Seabrook-Wilson House began as a small cabin around 1720 and was expanded and altered repeatedly by later generations. Thomas Seabrook, a patriot in the New Jersey militia, turned it into a two-story home, and the Seabrook family kept adding to it. The property stayed in the family for a total of 250 years. By 1896 the house had reached its present size and appearance.
Two prominent Port Monmouth families, the Seabrooks and the Wilsons, worked the farm on Sandy Hook Bay for most of its history. Among them were ship owners and captains, a Revolutionary War militia officer, local business owners and investors, and a clergyman. Many held local government positions. This is the part of the story that needs no embellishment: a working bayshore farm held by two families across generations, with several hundred acres of fields and salt marsh around it.
Steamboats, Bay Side Manor, and The White House
Until the mid-1800s the farmhouse stood alone on its stretch of shoreline. Then steamboat service and the railroads arrived, and the village of Port Monmouth grew up around the steamboat pier and the commercial fishing trade. Tourists came for the fresh air, the sandy beaches, and the fishing.
The old farmhouse followed the money. By the early 1900s it had become an inn, known first as Bay Side Manor and later as The White House. It served almost fifty years as a boarding house and tavern. That tavern period is real, and it is worth holding onto, because it is the only tavern the building ever was. It came roughly a century and a half after the Revolution.
By the mid-1960s the house stood empty and in severe disrepair. Concerned Middletown residents pushed Township officials to buy the site in 1967 and save it from destruction. The Middletown Township Historical Society, and later the Spy House Museum Corporation, ran it as a local history museum for over twenty years. In 1998 Middletown Township transferred the property to the County of Monmouth, and it became part of Bayshore Waterfront Park.
How Gertrude Neidlinger Invented the Spy House
In the 1960s, trying to generate interest in a decaying building, part-time caretaker Gertrude Neidlinger fabricated a story: that the house had been a tavern during the Revolutionary War, and that patriots had used it to spy on British troops. There is no evidence the house was ever a tavern at that time. It was a private home, and it remained a private home until the early twentieth century.
The invention worked. The tale caught on, kept local interest alive, and probably helped preserve the property. The Spy House Museum ran candlelight ghost tours, and the building’s reputation as haunted was likewise the creative work of its part-time curator. This is unusually well documented for a haunted house. Most places have a legend of uncertain origin. This one has an author.
What People Say They Encounter at the Spy House
The stories outlived their creator, as stories do, and the house has spent decades on lists of America’s most haunted buildings. The claims that circulate are secondhand and unverified, and none of them is supported by the historical record of the property. They are worth knowing only as folklore.
- Apparitions described as wearing period clothing.
- Disembodied voices and whispering in the halls.
- A boy, usually described as around ten to twelve years old, seen at an upstairs window when the house is thought to be empty.
- Cold spots and abrupt drops in temperature.
- The sensation of being touched by unseen hands.
- Electromagnetic readings logged by amateur paranormal investigators, which prove nothing on their own.
Treat all of it as reported experience rather than evidence. The honest summary is that a caretaker manufactured a haunting to save a building, and the haunting turned out to be more durable than the building’s real history in the public mind.
Visiting the Seabrook-Wilson House at Bayshore Waterfront Park
The house is open to the public from April through October, on Sundays only, from 1 p.m. to 4 p.m. It is free to walk the park around it year-round. Bayshore Waterfront Park preserves salt marsh, dunes, a mile of beach, and long views across Sandy Hook Bay, which is a large part of why the site is worth the trip whether or not the ghost stories interest you.
Visitors expecting a commercial haunted attraction should adjust their expectations. The candlelight ghost tours belonged to the Spy House Museum era, not to the county park that manages the site now. What is on offer today is one of the oldest houses on the New Jersey Bayshore, in a setting that still reads as the working shoreline it once was.
See The Spy House for Yourself
Sources
- Monmouth County Park System Parks Bayshore Waterfront Park
- The Whole Truth About the 'Spy House'
- NPGallery Asset Detail (National Park Service)
- Wikipedia: Seabrook–Wilson House
Frequently Asked Questions
Where is The Spy House located?
The Spy House is located at 119 Port Monmouth Road.
Can you visit The Spy House?
The Spy House is open to the public. Always follow posted rules and respect private property.
Reader sightings
Nobody has reported anything here yet. If you have been, you would be the first.
Report your own visit to Gertrude Neidlinger’s Ghosts: The Spy House, Port Monmouth
How haunted is this place?
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