Bowman Field. Built 1926. Long noted as Pennsylvania's oldest operating minor league baseball park and the nation's second oldest. The first professional game here was played April27, 1926, between the Williamsport Grays and the Negro league Harrisburg Giants. Over the years this park became home to successive Williamsport teams and hosted many major league teams for exhibition games. Originally Memorial Field; renamed 1929 for J. Walton Bowman.