Possible Clues:

• Nonconformist youths in the 1950s and early 1960s
• '50s-'60s nonconformists
• Strike and then hide over here with bohemian types
• Hippies attend Peel retrospective
• Cats
• Hippies, exhausted, hide in retreat
• Former drop-outs announced refusal to go on strike
• Bongo players
• Nonconformists
• Kerouac wannabes