Loudville Lead Mines

As well as a civics geek, I'm also a history geek-especially the American Revolution. My father gave me a children's encyclopedia on it in 5th grade and I've been hooked ever since.
Loudville is an early settlement located on what are now parts of both Easthampton and Southampton MA. It was settled sometime in the late 1600's and its territory contained a lead mine that according to legend was a supplier of this mineral(used in munitions) to the Continental Army that was fighting the British. It sounds great, but I'm not entirely convinced on this yet.(though it would be waycool).
First of all, I've come across different accounts on who owned the mine(s). This matters because if the British government owned it, any lead mined from it would probably go back to the Crown. There is a competing story that claims it was privately owned, therefore its contents might have been used for more nefarious purposes. Also, the mine was said to only operate until the 1750's, closed, and then opened again for a brief time in the early 1800's. Maybe in the middle there the mine was wildcatted for the purpose of the Revolution, which would make the whole thing even cooler if it was true.