Historical clue formulations

• "Boo!" shouter — 2018-06-21
• Bogeyman — 2016-11-06
• Fun house worker, maybe — 2013-02-13
• Bogeyman — 2002-04-26
• One trying a hiccups cure — 1999-10-24
• Bogeyman — 1997-06-20
• Bogeyman — 1994-07-10