Historical clue formulations

• "24" agent Jack — 2009-09-23
• Jack ___ ("24" agent) — 2004-01-21
• Campaigner for the 2000 G.O.P. presidential nomination — 2000-11-24
• 50's Yankees great Hank — 1996-03-20
• Hank of the '50s Yankees — 1995-03-19