Historical clue formulations

• Casino patron — 2019-02-20
• Bookie's customer — 2015-03-09
• Gambler — 2013-06-24
• Person in a pool — 2010-12-18
• Certain ticket holder — 2009-12-19
• Person in a pool — 2002-09-03
• One may have chips — 2002-08-17
• Tip sheet buyer — 1998-03-15
• Risk taker — 1995-10-13