William E. McCarthy Memorial Field 44 Hospital Rd, Medfield, MA02052 William E. McCarthy Memorial Field is located on Hospital Rd. The park features large open fields that are perfect for…More soccer or football. Several baseball diamonds with bleachers are also scattered across teh park. A gated off area has also been reserved for spectators to view the games. There is a samll parking lot available as well as free parking along the access road.