Help is available.
In the case of duplicate names, consult the list of Post Offices for their timetable. In territorial times and during the early years that followed Statehood, Post Offices were ephemeral. When one was discontinued, its name would often be used for another office elsewhere in the state. This list helps you identify the duplicates, not just the ones that survived until today, and learn when each was active. If the name is unique, your search will be ended.