Joseph, I do believe you've hit the nail on the head. I've always (or at least ocassionally) wondered why some folks attempt so strenuously to deny this obvious truth. After all, it's a fine tradition to nick ideas from! Having said that, I guess a British take on this appropriation has developed over the years, especially as people have come to see the 60s British guitarists as the motherlode, rather than the people who inspired them. The Harry Smith Anthology is still out there, though, as a kind of aural bible...