Historical clue formulations

• Ones crossing picket lines — 2025-07-21
• Strikebreakers — 2021-07-22
• Hard covers — 2019-02-23
• Coverings of cuts — 2019-01-23
• Cut protections — 2018-03-29
• Sources of labor pains? — 2017-10-20
• Signs of healing — 2017-03-21
• Signs of healing — 2016-06-29
• Strikers' replacements — 2015-02-22
• Union enemies — 2012-11-23
• Replacement refs, maybe? — 2012-10-28
• Union foes — 2009-05-21
• Picket provokers — 2005-03-06
• Union foes — 2004-04-18
• Strike breakers — 2003-08-26
• Signs of healing — 2002-08-12
• Sore spots? — 2000-11-18
• Signs of healing — 2000-05-18
• Picket line crossers — 1998-10-14
• Unpopular workers — 1998-03-13
• Picket line crossers — 1997-04-28
• Temporary protectors — 1997-01-21
• Union flouters — 1996-07-31
• Union targets — 1995-01-20