Wallace House
New Jersey

Wallace House

65 Washington Place, Somerville, New Jersey 08876

New Jersey’s Revolutionary War Headquarters — General Washington’s Winter Quarters 1778-1779, Georgian Architecture, Somerville Historic District, Wallace House and Old Dutch Parsonage State Historic Site, Somerset County New Jersey

Wallace House is a state historic site in Somerville, Somerset County, New Jersey, part of the Wallace House and Old Dutch Parsonage State Historic Site. This Georgian-style residence served as General George Washington’s headquarters during the winter of 1778-1779, while the Continental Army was encamped at nearby Middlebrook. The site features the restored 18th-century house with period furnishings, guided tours interpreting Washington’s stay and the Revolutionary War in New Jersey, the adjacent Old Dutch Parsonage (a separate historic building), and connections to key Revolutionary War events.

Washington’s Winter Headquarters

Built in 1778 by John Wallace, a prosperous Philadelphia merchant, the house was one of the finest residences in the area when General Washington chose it as his headquarters for the winter encampment of 1778-1779. Washington and his wife Martha occupied the house from December 1778 through June 1779, during a critical period of the Revolutionary War. The Middlebrook encampment was strategically located in the Watchung Mountains, providing a defensive position from which Washington could monitor British movements in New Brunswick and New York.

Notable Revolutionary War Connections

During Washington’s stay at Wallace House, several significant events occurred. The house hosted visits from prominent Revolutionary figures including Alexander Hamilton, the Marquis de Lafayette, and Henry Knox. It was during this period that Washington first received intelligence about Benedict Arnold’s shifting loyalties and made crucial decisions about troop movements that shaped the course of the war.

Visitor Information

The Wallace House and Old Dutch Parsonage offer guided tours interpreting 18th-century life and the Revolutionary War in New Jersey. The house has been restored with period-appropriate furnishings reflecting its appearance during Washington’s occupancy. Tours are typically available Wednesday through Sunday, though it is recommended to call ahead to confirm hours. The adjacent Old Dutch Parsonage (built 1751) provides additional context about colonial life in the region.

📍 Location: 71 Somerset Street, Somerville, Somerset County, New Jersey — NJ State Historic Site

Frequently Asked Questions

Is there an admission fee?

Admission to Wallace House and the Old Dutch Parsonage is typically free, though donations are welcomed.

When did Washington stay at Wallace House?

Washington used the house as his headquarters from December 1778 through June 1779 during the Middlebrook winter encampment.

Wildlife & Nature

Wallace House — George Washington’s headquarters during the winter of 1778-1779 (the winter after Valley Forge) while the Continental Army was encamped at Middlebrook. The 1770s Georgian house is remarkably well-preserved. Songbirds inhabit the heritage garden.

Nearby Attractions

Somerville — adjacent. Old Dutch Parsonage — adjacent. Duke Farms — 5 miles west. Washington Rock SP — 10 miles east.

Last updated: May 13, 2026

Park Location

65 Washington Place, Somerville, New Jersey 08876