The 1969 line up, I think. I went t the 1970 one - which I think was the last. Also a very impressive line up. I was there, but can't remember many of the names now (and no, I was just a music freak at the time - no drink or drugs taken!).........
Deep Purple, Juicy Lucy, Hardin York...
There were no steam trains (apart from a very few preserved lines) in 1969. Certainly none anywhere near Plumpton. Good sneer though.........................