Historical clue formulations

• International Longshoremen's Association, e.g. — 2026-03-31
• The "U" of 60-Down — 2025-03-09
• The "U" of 22-Down — 2024-12-09
• The "U" of E.U. — 2023-06-26
• The "U" of the E.U. — 2022-10-24
• Matrimony — 2021-09-16
• Strike force? — 2020-03-19
• Collective bargaining side — 2019-02-18
• Common name for a central rail station — 2018-07-24
• State of the ___ — 2018-01-24
• Marriage — 2017-11-27
• Marriage — 2017-09-27
• Requirement for one going into labor? — 2016-03-20
• The "U" of E.U. — 2014-10-07
• The "U" of U.S.S.R. — 2013-12-16
• Group in a striking photo? — 2013-10-20
• Confederacy foe — 2013-08-06
• 18-Down, for one — 2013-05-24
• Coupling — 2012-10-02
• The "U" in E.U. — 2012-01-23
• The "U" of U.S.S.R. — 2011-11-21
• Marriage — 2011-07-21
• Civil War side — 2011-04-29
• Labor party? — 2011-01-16
• Shop group — 2010-06-23
• Bargaining group — 2010-05-30
• It may be striking — 2009-05-22
• The "U" in A.C.L.U. — 2009-04-20
• Men in blue — 2009-01-28
• Grant's side — 2008-11-05
• Bargainer at strike talks — 2008-09-30
• ___ Station — 2008-08-28
• Shop group — 2008-08-27
• Word with card or catalog — 2008-06-06
• Teamsters, e.g. — 2006-12-05
• Pairing — 2006-08-04
• One side in labor negotiations — 2006-05-10
• Strike caller — 2004-12-07
• Matrimony — 2004-11-21
• Coupling — 2004-09-26
• Civil War side, with "the" — 2004-01-11
• North side — 2003-10-26
• Merger — 2002-07-28
• The "U" in U.S.S.R. — 2002-02-25
• Wedding — 2002-01-05
• Collection of chapters — 2001-09-07
• See 45-Down — 2001-08-08
• Kind of organizer — 2000-05-31
• Kind of boss — 2000-05-14
• Kind of jack — 1999-09-04