The region of southeastern Pennsylvania where southern Berks, northern Chester, and eastern Lancaster counties meet is known locally as the "Tri-County" area. The Tri-County area was first settled by Welsh immigrants, and later by German, Irish, and Scottish immigrants. While the area was largely agricultural, it also developed into an important early industrial corridor. In the early twenty-first century, the Tri-County area is a mix of farmland, industry, and suburban real estate development. The Tri-County Heritage Society vertical files, circa 1970s-2016, consist of vertical files on families, churches, cemeteries, and other topics relating to Chester, Berks, Lancaster, and other Pennsylvania counties. The collection is organized into seven series: Series I. Family histories, Series II. Chester County cemetery and church records, Series III. Berks County cemetery records, Series IV. Lancaster County cemeteries, Series V. Other county cemetery and church records, Series VI....(see more)
The region of southeastern Pennsylvania where southern Berks, northern Chester, and eastern Lancaster counties meet is known locally as the "Tri-County" area. The Tri-County area was first settled by Welsh immigrants, and later by German, Irish, and Scottish immigrants. While the area was largely agricultural, it also developed into an important early industrial corridor. In the early twenty-first century, the Tri-County area is a mix of farmland, industry, and suburban real estate development. Tri-County Heritage Society local history collection, 1735-1990s, consists of manuscripts and other original materials, photographs and audiovisual materials, secondary-source materials, printed matter and ephemera, and other documents relating to the history, residents, organizations, and businesses of Berks, Chester, and Lancaster counties. There is also some material relating to Delaware, Montgomery, and other nearby counties in Pennsylvania.