Benjamin Chew was a fifth-generation American, a Quaker-born legal scholar, prominent and successful Philadelphia lawyer, slaveowner, and chief justice of the Supreme Court of the Province of Pennsylvania and later the Commonwealth of Pennsylvania. Chew was known for precision and brevity in his legal arguments and his excellent memory, judgment, and knowledge of statutory law. His primary allegiance was to the supremacy of law and the constitution.

The Penn–Calvert boundary dispute was a long-running legal conflict between William Penn and his heirs on one side, and Charles Calvert, 3rd Baron Baltimore and his heirs on the other side. The overlapping nature of their charters of land in Colonial America required numerous attempts at mediation, surveying, and intervention by the king and courts of England to ultimately be resolved. Subsequent questions over these charters have also been adjudicated by American arbitrators and the Supreme Court of the United States. The boundary dispute shaped the eventual borders of five U.S. states: Pennsylvania, Maryland, Delaware, New Jersey, and West Virginia.