The Spy House (Seabrook–Wilson House), Port Monmouth, New Jersey

If you stand outside the Spy House and face the bay, the setting explains why the place attracts attention. Sandy Hook is directly across the water. New York Harbor sits just beyond it. During the American Revolution, this stretch of coastline was active, exposed, and watched. That part is documented.

The building itself is older than most of the stories attached to it. The structure known as the Spy House is formally the Seabrook–Wilson House, with sections dating to the late 17th century. It began as a small dwelling and expanded over time as the Seabrook family established themselves along the Bayshore. The family occupied the property for roughly 250 years. One member served in the local militia during the Revolutionary period, which places the house within the broader wartime landscape of Monmouth County, where troop movement, coastal raids, and intelligence gathering were all part of daily reality.

What cannot be documented is the role the house is now best known for.

There are no primary sources that identify the building as a Revolutionary War spy headquarters. There are no contemporary records placing British officers inside it as unsuspecting sources of intelligence, and no evidence that it functioned as a tavern during the war. The house was a private residence.

The identity of the “Spy House” begins much later, and it is tied to one person more than anyone else: Gertrude Neidlinger.

Gertrude served as a caretaker and informal curator of the house in the mid-20th century, at a time when historic preservation in the area was uncertain and public interest was limited. By all accounts, she was deeply committed to the building. She kept it open, brought people through it, and gave it a presence it might not otherwise have had.

She also told stories.

Under her stewardship, the house became something more than a colonial structure. It became a place where British soldiers gathered, where conversations were overheard, and where information quietly made its way to the American side. It became a location tied to espionage, to Washington’s intelligence network, and to the hidden mechanics of the Revolution.

There is no evidence supporting those claims. That has been confirmed through historical research, including state records and later analysis by preservationists. But the story worked. It gave the building an identity that people could immediately understand and repeat.

Gertrude did not just preserve the house. She defined how it would be remembered.

The next layer came naturally. Once a place is understood as active during the Revolution, and once it is presented as a site of secrecy and danger, the step into haunting is not a large one.

Reports associated with the Spy House have been consistent over time, even if their origins are difficult to separate from expectation.

Visitors have described seeing a woman moving through the rooms, often referred to as a “White Lady,” though no specific historical identity is attached to her. Others have reported a child appearing at upper windows or moving between rooms, then disappearing. Figures described as colonial or military in appearance have been seen standing in hallways or near doorways, not interacting, simply present.

More common are the physical experiences. Footsteps on upper floors when the building is empty. Doors opening or closing without explanation. Objects shifting position. A repeated sense, described in similar language across different accounts, that someone is nearby but not visible.

Staff and volunteers have added to those reports over the years. Some have described hearing movement after closing. Others have noted specific rooms where the temperature changes noticeably without a clear cause. These are not isolated claims tied to a single period; they appear across decades of anecdotal reporting.

There are also stories that can be dismissed. Claims of buried bodies on the property, pirate connections, and hidden tunnels have been investigated and found to have no supporting evidence. Those details belong to the same constructed narrative that produced the spy story.

What is left is a site where three things overlap: a documented colonial structure, a historically active region during the Revolution, and a narrative framework that encourages a particular interpretation of experience.

The role of school groups in reinforcing that framework should not be overlooked. Beginning in the 1970s and continuing into the 1980s, the Spy House became a regular stop for local field trips. Girl Scouts, Brownies, and school classes were brought through the building and told versions of its history that blended documented fact with established story.

For many of those visitors, the distinction was not clear. The house was presented as a place of spies, and that understanding stayed with them. Over time, those same visitors returned as adults, bringing their own expectations—and in some cases, their own experiences—back into the space.

That is how the identity of the Spy House solidified. Not through archival discovery, but through repetition.

Gertrude’s role sits at the center of that transition. Without her, the building may have remained a lesser-known historic structure. With her, it became something else entirely: a site where the Revolution is not just remembered, but dramatized and, for some, still present.

The question of whether the house is haunted is not one that can be answered historically. What can be said is that the reports exist, that they are consistent in certain details, and that they occur in a place where expectation has been carefully shaped over time.

The building itself remains what it has always been: one of the oldest surviving structures along the New Jersey Bayshore, tied to a family with direct connections to the Revolutionary period, located in a region that saw sustained military activity.

Everything else was added.

And it has proven difficult to remove.

Sources

• Seabrook–Wilson House (Spy House), National Register of Historic Places nomination, 1974.
• New Jersey State Historic Preservation Office, property records and site documentation.
• Monmouth County Park System, official history of the Seabrook–Wilson House.
• New Jersey Division of Parks and Forestry, Revolutionary War activity in Monmouth County.
• G. Caggiano, “The Invented History of the Spy House,” 2014.
• Patch (Middletown, NJ), “Why the Spy House Story Isn’t What You Think.”
• American Battlefield Trust, regional Revolutionary War context.
• Local oral histories and staff accounts compiled by Monmouth County Park System.