I heard "Rock Island Line" and loved it, knew that it wasn't the Leadbelly version, and that I wasn't supposed to love anything I heard on Top 40 radio, but I couldn't resist. So -- living in the USA -- I did go out and by the only Lonnie album available here -- the one that had "Frankie and Johnny," "Nobody's Child," "Lost John," etc. Since then, I've added the one with Rory Gallagher et al., the one with Chris Barber... and I go along with the idea that he'd be LESS authentic if he sounded more like Leadbelly. He's an original, and he's irresistible.