Joseph Priestley
The noted English scientist, discoverer of oxygen, and Unitarian theologian lived in Northumberland, 1794 to 1804. His home and laboratory along the river are now a Priestley memorial and museum.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford Libraries
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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