Thank goodness most of Lonnie's material is still available on CD, including, of course, his recent recordings which include "The Skiffle Sessions" with Van Morrison and Chris Barber. I don't recall much in the way of published interviews, etc,. but I would recommend Mo Foster's book "Play Like Elvis" which chronicles the slow and painful rise of rock music in the UK. The book includes Lonnie's recollections of the very early days of skiffle and the struggle to get a half decent guitar in Britain during the late 40s/early 50s. Even guitar strings were hard to come by.