Ivy Mills
Concord Township, Delaware County, Pennsylvania
Marker Inscription
A pioneer in this area's industrial and religious development, Thomas Willcox built a paper mill here on the West Branch of Chester Creek in 1729. It became a major supplier to the print shop of Benjamin Franklin; by 1776 it was supplying paper for the currency of the colonies and Continental Congress and was operated by Willcox's descendants until 1866. An early Catholic mission was established on the property.
Erected by Pennsylvania Historical and Museum Commission
The Story
In 1729 Thomas Willcox built a paper mill on the West Branch of Chester Creek, launching an enterprise that would help supply the young nation's presses. Ivy Mills became a major source of paper for Benjamin Franklin's print shop, and by 1776 it was producing the stock on which the currency of the colonies and the Continental Congress was printed. Willcox's descendants ran the mill until 1866, and an early Catholic mission took root on the same property.
Why it matters
By making the very paper that carried colonial money and print, Ivy Mills quietly underwrote both the economy and the communication networks that made American independence possible.
The story behind this marker
AI contextThe era
In 1729, the countryside of what is now Delaware County, Pennsylvania, was still part of a young colonial world, but it was a colony rich in running water and rising ambition. Streams like Chester Creek offered exactly what an early manufacturer needed: steady power to turn a mill wheel.
Pennsylvania in this period was becoming a center of colonial enterprise and printing, with Philadelphia growing into one of the busiest cities in British North America. Every printer, every merchant, and every colonial government needed a reliable supply of one humble but essential material: paper.
Against that backdrop, a paper mill on the West Branch of Chester Creek was not a small thing. It planted an industry on American soil at a time when the colonies still leaned heavily on goods shipped from across the Atlantic.
People & events
Thomas Willcox built his paper mill here in 1729 and, in doing so, became a pioneer of the region's industrial life. Ivy Mills grew into a major supplier of paper, and among its customers was the print shop of Benjamin Franklin, whose presses helped shape colonial public life.
By 1776, the mill had taken on work of real consequence. It was supplying the paper on which the currency of the colonies and of the Continental Congress was printed, tying this quiet creekside operation directly to the finances of a nation in the act of being born.
The enterprise stayed in the family, run by Willcox's descendants until 1866, an unusually long unbroken run for an early American business. And the property held more than industry: an early Catholic mission took root here as well, so that the site nurtured both the material and the spiritual development of the community.
Its place in the American story
It is easy to picture the American Revolution as a story of battles and declarations, but revolutions also run on paper. Money had to be printed, pamphlets had to be circulated, and a Continental Congress had to communicate with a scattered people. All of that required a dependable domestic supply of paper.
Ivy Mills sat at that unglamorous but vital junction. By making paper for Franklin's presses and for the currency of the colonies and the Continental Congress, it helped underwrite both the economy and the flow of information that a new nation depended on.
There is a further significance in its long life and its early Catholic mission. Here was an American industrial dynasty that endured well past the founding era, on a site that also welcomed a faith community at a time when Catholic worship was still finding its footing in the colonies. It is a reminder that the American story was built by makers and by minorities alike, often on the very same ground.
If you visit
You are in the gentle countryside of Concord Township, along the West Branch of Chester Creek, where the landscape still hints at why a mill rose here so long ago. Listen for the water, because moving water was the whole reason this place became an engine of early American industry.
There is a quiet pleasure in standing where something so essential was made. The paper that carried colonial money and colonial print began at spots like this one, and the marker invites you to imagine the mill wheel turning where the creek runs now.
Ivy Mills fits naturally into a road trip through the historic countryside southwest of Philadelphia, a region layered with colonial and Revolutionary sites. Come to trace an unexpected thread of the founding story, the humble craft of papermaking, back to the creekbank where it helped supply a revolution.
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
- · Thomas Willcox
- · Benjamin Franklin
Themes & tags
Nearby & related markers
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