Alec, I know about the "skiffle.net", because I was born in Hamburg, which you could not have known. Nevertheless, thanks for this hint.
Concerning Leadbelly: it's true, that not everything he claimed was composed by him. Some songs are traditional and if somebody created new lyrics/words, he claimed to be the originator of this particular song in those days.
Further to my contribution I only would like to emphasize the general contribution of Leadbelly concerning Lonnie's career. And WLD is absolutely right: Lonnie was the first m o d e r n folksinger. Let me say he was the white son of black Huddie because without Leadbelly's songs skiffle would not have take a start. What do you mean, folks?

By the way: I have had the chance to listen to Lonnie in Hamburg's Ernst-Merk-Halle in 1958 (?). The second part was performed by H. Littleton. This was not a successful mixture although personally I do like Littleton. Half skiffle, half mainstream jazz. Controversial.
Manfred from Germany