Historical clue formulations

• Cotton variety — 2025-09-12
• Cotton variety — 2025-01-27
• Cotton variety — 2023-09-24
• Native people of southern Arizona — 2019-05-29
• Fine cotton — 2017-07-12
• High-grade cotton — 2017-05-28
• Variety of cotton — 2015-03-05
• Fine grade of cotton — 2013-06-20
• Fine cotton — 2012-04-23
• Southwest native — 2009-11-13
• Gila River native — 2008-04-26
• People of the Southwest — 2006-11-30
• Cotton fabric — 2005-09-18
• Tucson's county — 2004-05-28
• River People of the Southwest — 2001-02-10
• Strong cotton — 2000-04-18
• Sheet cotton — 1998-05-30
• Arizona Indian — 1998-03-15
• Variety of fine cotton — 1997-06-02
• Fine cotton — 1995-12-24
• Arizona native — 1995-09-29
• Mexican Indian — 1995-02-16
• Variety of cotton — 1994-11-27