Possible Clues:

• Indie pop singer Parks
• ''Alice's Restaurant Massacree'' singer Guthrie
• Singer between Melanie and Joan at Woodstock
• Janis's hubby in the funnies
• One of the Guthries
• Guthrie of folk singing
• Singer/songwriter Guthrie
• Woody Guthrie's heir
• "Alice's Restaurant" singer
• ''Alice's Restaurant'' singer Guthrie