Title: History of Northwestern Pennsylvania
Subjects: History, Biography
Places: Pennsylvania, Erie County (Pa.), Crawford County (Pa.), Mercer County (Pa.), Venango County (Pa.), Warren County (Pa.), Forest County (Pa.), Clarion County (Pa.), McKean County (Pa.), Elk County (Pa.), Jefferson County (Pa.), Cameron County (Pa.), Clearfield County (Pa.), Warren County, Venango County, Mercer County, McKean County, Jefferson County, Forest County, Erie County, Elk County, Crawford County, Clearfield County, Clarion County, Cameron County