William Alexander, who styled himself Lord Stirling, began developing his large estate near Basking Ridge in the 1760s. The property, known in period records as “The Buildings,” included a substantial manor house and the farms, workshops, and outbuildings required to support an elite household. Its operation depended on a mixed labor force that included enslaved people. The estate reflected Alexander’s ambitions, scientific and agricultural interests, and place among New Jersey’s leading colonial families.

When the Revolution began, Stirling became one of the Continental Army’s senior generals. He was captured after leading a determined rear-guard action at Long Island, returned through exchange, and later fought at Trenton, Brandywine, Germantown, Monmouth, and other operations. His home’s location in the Watchung region placed it near a strategic inland corridor used by the army to observe British-held New York while protecting supply routes and the countryside west of the coastal plain.

The manor also entered the operational history of the war. Major General Nathanael Greene used the estate as headquarters from February into April 1777, when Continental forces watched British positions in New Jersey and struggled to secure food, forage, and intelligence. Headquarters activity would have brought aides, messengers, guards, horses, and administrative work to the property. It linked domestic space to an army that often dispersed across farms and villages rather than occupying a single formal camp.

Stirling’s military prominence did not preserve the estate intact. He died in 1783, and later changes in ownership and use altered the property. The manor house declined and was destroyed by fire in 1919. Archaeological remains and documentary evidence now carry much of the site’s history. That evidence also helps recover the labor of people who maintained the estate but appeared only selectively in elite records, including the men and women held in slavery by the Alexander household.

Today the site is significant as both a commander’s home and a temporary Continental headquarters. No standing manor reproduces its Revolutionary appearance, so the marker and archaeological landscape require visitors to imagine a once-complex working estate. The history joins military command with household economy, slavery, transportation, and environmental setting. It also explains why Basking Ridge and the Watchungs repeatedly served the Continental Army: the area combined defensible terrain with roads, farms, and communication routes within reach of the British base at New York.

Stirling’s title was based on a disputed Scottish claim and was not formally recognized by Britain, yet contemporaries commonly used it. That detail captures the mixture of inherited status and revolutionary reinvention surrounding Alexander: an ambitious colonial gentleman who became a republican general while continuing to live as a landed elite.