My father wrote a song about the "Pig War" in the San Juan Islands of Washington State, and when it was played for one of the park rangers at that park he had a dispute with one of the facts. I asked Dad about the ranger's suggestion that the "fact" be changed, and he would have nothing to do with it. In hindsight, it was a negotiable tidbit and the ranger was not a reliable source, so I think Dad made the correct decision.

If you know it's wrong, and you can determine how much wrong, you are in charge of this research and a rewrite if you choose. In my opinion.