Whether the people give af or not is irrelevant. If the founder(s) of the town intended it to be pronounced Purcellville, the people are wrong. If the founder(s) said percuhville, then they're not wrong.
The founders are long dead and nobody alive has ever heard them say the name. That's how language changes from one into another over time. That's how we got all the thousands of unique languages on Earth.
First, it's an accent. Then over time, it becomes heavier and heavier until it eventually becomes a brand new language. Words may even be borrowed and used from other languages and changed as well.
Whether the people give af or not is irrelevant. If the founder(s) of the town intended it to be pronounced Purcellville, the people are wrong. If the founder(s) said percuhville, then they're not wrong.
The founders are long dead and nobody alive has ever heard them say the name. That's how language changes from one into another over time. That's how we got all the thousands of unique languages on Earth.
First, it's an accent. Then over time, it becomes heavier and heavier until it eventually becomes a brand new language. Words may even be borrowed and used from other languages and changed as well.