Historical clue formulations

• Gangs — 2023-01-06
• Crews — 2022-11-06
• Western outfits — 2019-03-01
• Groups in westerns — 2018-08-14
• Groups chasing outlaws — 2014-12-08
• Rap stars often have them — 2013-06-09
• Entourages — 2012-11-04
• Groups on horseback — 2005-01-20
• Sheriffs' aids — 1999-09-13
• Oater groups — 1998-05-03