Historical clue formulations

• Susan's family on "Seinfeld" — 2013-09-21
• Family of George's fiancée on "Seinfeld" — 2010-05-06
• Family in Upton Sinclair's "Oil!" — 2009-05-02
• Characters in "Macbeth" and "Richard II" — 2005-07-30
• Characters in "Macbeth" and "Richard II" — 1999-02-19
• Media executive Steven and others — 1997-10-26
• Actress Katharine et al. — 1997-06-01
• Betsy and Diana — 1994-03-13