The Dead Milkmen, They Might be Giants, The Ramones, Nirvana, Harry McClintock, Arlo Guthrie, Frank Zappa, Joe Hill, The Pouges, Jimi Hendrix, Bob Marley, Van Morrison, Peter Tosh, Annie Humphrey, Bill Monroe. I guess mine wound up to be the top 15 I couldn't leave any of them out!
Huxley- I saw Joe Hill on your list and I was amazed. Not many people I know have heard of him. Did you mean "wobbly" IWW Joe Hill or is their another Joe Hill?