Historical clue formulations

• Comets' head — 2013-03-15
• ___ Joel Osment of "The Sixth Sense" — 2012-08-23
• See 14-Across — 2008-07-24
• "The Wizard of Oz" co-star — 2004-07-09
• "Shake, Rattle and Roll" singer — 2001-05-24
• Author with a book subtitled "The Saga of an American Family" — 1997-08-15
• Alex who wrote "Roots" — 1997-07-14
• "R-O-C-K" singer, 1956 — 1996-05-03
• Malcolm X biographer — 1995-10-12
• 50's rocker Bill — 1995-08-23
• The Tin Man portrayer — 1993-12-22