Hamilton, Pennsylvania
Hamilton is an unincorporated community in Perry Township in Jefferson County, Pennsylvania, United States. Hamilton and the Valier area was used for coal mining. Getting nicknamed "Browntown". There is now a Sandpaper factory,  3-H Abrasives. It went through a lot of changes throughout the years, the Post Office moved next door, 3-H burned down and moved to another spot, there was a General store that went out of business. A local man crafted a baseball diamond for the local kids, but now is a cornfield. History
A post office has been in operation at Hamilton since 1852. Robert Hamilton was the first postmaster. References

Unincorporated communities in Jefferson County, Pennsylvania
Unincorporated communities in Pennsylvania