Historical clue formulations

• "The Pearl of ___ Island" (Harriet Beecher Stowe novel) — 2012-06-19
• Ice legend's family — 2010-12-31
• Bobby and others — 2010-03-14
• "The Pearl of ___ Island" (Stowe novel) — 2009-05-31
• Bobby and others — 1997-11-14
• Defenseman Bobby et al. — 1997-08-27
• Hockey's Bobby et al. — 1996-04-07
• Hockey's Bobby et al. — 1994-11-22
• Hockey's Bobby et al. — 1994-02-15