Dey Mansion

Dey Mansion is a New Jersey historical marker in Passaic County, dedicated 1964.

Marker is on Totowa Road, on the left when traveling east. Reported missing.

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Home of Col. Theunis Dey, built about 1740. Twice used by Washington as headquarters in 1780, when the army was in Totowa.

Maps this old were drawn largely by eye, so places on them can sit miles from where they really are. The pin is ours and marks the marker's location today.

TodayHistorical map

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Historical maps covering this location

1740 · 43. Novi Belgii, in America Septentrionali. (David Rumsey Map Collection, Stanford Libraries)
1755 · North America from the French of Mr. D'Anville, improved with the back settlements of… (Digital Commonwealth, Boston Public Library)
1756 · A map of the eastern part of the province of New York with part of New Jersey, & c (Digital Commonwealth, Boston Public Library)
1807 · Northern Part of New Jersey, shewing the the American and British Armies after crossing… (David Rumsey Map Collection, Stanford Libraries)
1811 · Map Of The Country Thirty Miles Round the City of New York. (David Rumsey Map Collection, Stanford Libraries)

43. Novi Belgii, in America Septentrionali, 1740, covering the location of Dey Mansion, with a pin at the marker's coordinates — 43. Novi Belgii, in America Septentrionali, 1740, covering this location. David Rumsey Map Collection, Stanford Libraries. The pin is ours, placed from the marker's coordinates.

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For example, one family's tree showed the Articles of Confederation marker in Pennsylvania standing under a mile from where William Gabby lived in the 1760s.

What that marker records spans 1777 to 1789, overlapping William Gabby's years there.

From one family's 77-marker roster

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Marker data: New Jersey Historical Commission

More markers nearby

Washington Headquarters - Preaknesssame spot
American Encampmentunder 1 mi
Totowa Heights1 mi
Washington's Lookout - Great Notch -3 mi

On the National Register nearby

Dey Mansion270 ft

Places within about 300 feet of this marker that are listed on the National Register of Historic Places. A nearby listing is not always the marker's own subject.