yup, I was pretty sure the lock was a Hixon. Rifle came from Ohio, but normally I'm told he marked his barrel also, which this one doesn't seem to have a mark. No clue as to who the stock and barrel maker was, I don't know much of anything about the styles of manufacturer to even hazard a guess. And if this had been converted from a flinter to a percussion, I'm not sure it's even possible to determine.
"I'm your huckleberry, it's just my game"