Codorus Furnace
East Manchester Township, York County, Pennsylvania
Marker Inscription
Erected in 1765 by William Bennet. Operated by James Smith, a signer of the Declaration of Independence, during the Revolutionary War. It is the oldest remaining landmark of the iron industry in York County. The old Furnace, now restored, is 2.5 miles NE of here.
Erected by Pennsylvania Historical and Museum Commission
The Story
Built in 1765, Codorus Furnace was part of the charcoal-iron industry that turned Pennsylvania's forests and ore beds into a colonial and Revolutionary-era workshop. It was operated during the Revolution by James Smith, a York County lawyer who signed the Declaration of Independence. As the oldest surviving relic of York County's iron trade, the restored stack recalls an age when local furnaces cast the tools, stoves, and munitions of a new nation.
Why it matters
Furnaces like Codorus made Pennsylvania an early engine of American industry, and its tie to a Declaration signer links backcountry ironmaking to the founding of the republic.
The story behind this marker
AI contextThe era
In the middle of the eighteenth century, Pennsylvania's forests and ore beds made it one of colonial America's great workshops of iron. The recipe was local and elemental: iron ore dug from the ground, limestone for flux, and above all charcoal — vast quantities of it, burned from the surrounding woods — all fed into a stone furnace stack whose fires ran for months on end.
York County, with its timber, water, and ore, was fitting ground for this industry. A furnace was more than a machine; it was the heart of a small industrial community, drawing woodcutters, colliers, teamsters, and founders into a self-contained world organized entirely around keeping the stack in blast.
When Codorus Furnace was built in 1765, the colonies were still under British rule and still a decade from independence. Iron made here belonged first to the colonial economy — and soon, as events turned, to the war that would break that colonial tie.
People & events
The marker names two men, and between them they capture the arc of the era. William Bennet erected the furnace in 1765, joining the ranks of colonial ironmasters who turned backcountry ore and timber into a working enterprise.
During the Revolutionary War the furnace was operated by James Smith — and Smith was no ordinary ironmaster. He was a York County lawyer who signed the Declaration of Independence, one of the men who pledged themselves to the cause of American independence. To have a signer of that founding document tied to the daily, sooty work of running an iron furnace is a striking joining of high politics and hard industry.
That pairing is the heart of this site's appeal. The same years that produced soaring words about liberty also demanded iron — for tools, for stoves, for the ordinary and warlike goods a fighting nation needed. Codorus Furnace stood at the meeting point of those two demands.
Its place in the American story
Furnaces like Codorus made Pennsylvania an early engine of American industry, and that industry was quietly essential to the Revolution. Armies and communities alike ran on iron, and the colonies' ability to produce it at home mattered when the break with Britain came.
The marker calls Codorus the oldest remaining landmark of the iron industry in York County, and that endurance is itself meaningful. Countless colonial furnaces have vanished entirely; a surviving stack is a rare physical link to the craft that helped underwrite both the colonial economy and the war for independence.
And the tie to a Declaration signer draws a direct line from backcountry ironmaking to the founding of the republic. It's a reminder that the American founding was not only a matter of assemblies and documents, but also of forges, furnaces, and the practical, working enterprises that stood behind the men who signed their names.
If you visit
The marker tells you the restored furnace itself lies a couple of miles to the northeast, so treat this spot as the doorway to the real thing rather than the destination. Following the pointer to the old stack is the payoff.
When you reach a charcoal-iron furnace, look for the massive stone stack — the tall, blocky structure where ore, limestone, and charcoal once went in and molten iron came out. Picture the surrounding woods stripped for charcoal and the round-the-clock labor of keeping the fire alive; these places never truly slept while in blast.
For a road trip through York County's early history, Codorus Furnace rewards travelers who like their history tangible and industrial. Stand beside the restored stack and let the two ideas meet: this was working, grimy, essential labor — and it was bound up, through the man who ran it, with the very founding of the United States.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
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Related people
- · William Bennet
- · James Smith
Related events
- · American Revolution
Themes & tags
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