Pittsburgh

Pittsburgh in the Revolutionary War was not a battlefield in any conventional sense. No major engagement between Continental and British regulars took place at the Forks of the Ohio. What happened there was something more sustained and in some respects more consequential: for eight years, Fort Pitt served as the linchpin of the entire American western strategy, the supply base from which Continental forces reached into the Ohio Valley, and the one fixed point that kept the western frontier from collapsing entirely.

The geography explains everything. Where the Allegheny River comes down from the northeast and the Monongahela comes up from the southwest, they meet to form the Ohio, which flows nearly a thousand miles to the Mississippi. Whoever controlled that confluence controlled the practical gateway to the interior of a continent. The French had understood this in 1754, which is why they built Fort Duquesne on the exact spot. The British understood it when General Forbes destroyed Fort Duquesne in 1758 and immediately built a larger fort on the same ground and named it for William Pitt. The Americans understood it when they took over the fort in 1775 and turned it into the westernmost anchor of the Continental supply system.

Fort Pitt's role as a supply depot defined its wartime function. George Rogers Clark's legendary 1778–1779 campaign, which secured American claims to the Illinois country by capturing Kaskaskia, Cahokia, and Vincennes, was organized and partly supplied through Pittsburgh. The men and materiel that moved down the Ohio from Fort Pitt made Clark's audacious winter campaign logistically possible. Without the Forks of the Ohio as a staging point, the Illinois country question would have looked very different by the time peace negotiations began.

The defensive function was equally important and far more visible to the people who lived there. From 1776 onward, western Pennsylvania was subjected to repeated raids by Native American war parties allied with the British — primarily Shawnee, Mingo, and Delaware warriors operating from towns in the Ohio country. The raids struck farms, killed settlers, and drove hundreds of families back toward the mountains. Fort Pitt and the network of smaller stations and blockhouses it supported were what stood between those raiding parties and the total abandonment of the western settlements.

Colonel Daniel Brodhead commanded at Fort Pitt from 1779 to 1781 and conducted the most significant offensive operation directly out of the fort: a raid up the Allegheny River in August 1779 that destroyed a series of Seneca and Munsee towns and temporarily reduced the pressure on western Pennsylvania's northern settlements. It was a brutal campaign by any measure — the destruction of Indian towns and food stores was deliberate and comprehensive — but it was also strategically coherent within the logic of frontier warfare as both sides practiced it.

The name William Crawford is inseparable from Pittsburgh's revolutionary history and from its darkest chapter. Crawford was a Virginia militia colonel who led the disastrous Sandusky expedition of June 1782, a punitive raid into Ohio country that ended in the capture of Crawford himself. He was tortured and burned at the stake by Delaware warriors, in part as retribution for the Gnadenhutten massacre of March 1782, in which Pennsylvania militia had killed nearly a hundred Christian Delaware men, women, and children at a Moravian mission village. Crawford had not been at Gnadenhutten, but he commanded men who had, and the Delaware did not draw fine distinctions. His death reverberated through Pittsburgh and western Pennsylvania for generations.

John Neville represents a different kind of Pittsburgh figure: the frontier gentry who accumulated land, commanded militia, and navigated the intersection of military service, political ambition, and economic interest that characterized the western Pennsylvania elite. Neville served as a Continental officer, participated in frontier defense operations, and later became one of the most prominent figures in the region — known ultimately for his role in the Whiskey Rebellion of 1794, a postwar chapter that revealed how much tension the Revolution had created rather than resolved.

The Treaty of Paris in 1783 assigned the Ohio Valley to the United States largely on the basis of Clark's campaigns and the sustained American presence at Fort Pitt. Neither would have been possible without the fort's function as a supply and logistics hub. Pittsburgh's contribution to the Revolution was not dramatic in the way that Bunker Hill or Yorktown was dramatic. It was organizational, logistical, and sustained over eight years of grinding frontier warfare. That kind of contribution is harder to commemorate than a single battle, but it is the kind that determines outcomes.

The city that grew from the fort — incorporated as Pittsburgh in 1816, though the name had been used informally since the 1760s — carried the marks of its frontier origins well into the nineteenth century. The river geography that made it strategically vital in 1758 made it industrially dominant by 1860. The confluence that the French and British fought over, that Clark's men floated past on their way to the Illinois country, that Daniel Brodhead's soldiers used as their base of operations, eventually became the center of American iron and steel production. The fort is gone, reduced to a preserved outline in a public park at the tip of the Point. The rivers remain.