Possible Clues:

• Naval petty-officers in charge of signals
• Sturdy old English folk
• You fellows of the guard, but not the garda
• The old sign for old farmers
• You people of the guard!
• The one-time warning given by the farming community
• Hey, you fellows, you're part of the guard!
• U.S. Navy petty officers
• ___ of the Guard
• Navy officers