Historical clue formulations

• Rigging pros — 2013-07-06
• Petty officers, for short — 2013-04-04
• Smee and others — 2012-09-08
• Petty officers, informally — 2011-07-19
• Cable managers, for short — 2002-11-17
• Petty officers — 2002-06-25
• Petty officers — 1996-04-01
• Ship officers — 1994-09-16