So that’s Cassandra Peterson, AKA Elvira Mistress of the Dark, on the cover of the Tom Waits 1976 album Small Change.
She didn’t start the Elvira bit until 1981.
Before that she left her home town (which now is at the bottom of a lake?) at the age of 17 to become a showgirl in Vegas. It was there that she lost her virginity to Tom Jones and dated Elvis. Elvis suggested she get the hell outta sin city. So she moved to Italy, became fluent in Italian and was the lead singer for a rock band. In Italy she also met Fredrico Fellini and he cast her in the movie Roma with a bit role (you know what that means =)) after that she moved back to the states and became a successful DJ in LA and member of the famous improv troupe the Groundlings along with Phil Hartman, Pee Wee Herman, and Jon Lovitz.