Historical clue formulations

• Singer whom M.L.K. Jr. called the "queen of American folk music" — 2021-08-08
• One-named folk singer — 2018-04-27
• "Glory, Glory" singer — 2010-09-19
• "Gonna Let It Shine" singer — 2007-07-05
• One-named folk singer — 2007-05-03
• Folk singer from Birmingham — 2007-01-24
• "Livin' With the Blues" singer — 2005-12-17
• "___ Sings Dylan" (1965 folk album) — 2005-08-19
• One-named folk singer — 2004-03-23
• One-named singer — 2004-02-25
• "My Eyes Have Seen" singer — 2003-08-17
• "Cool Water" singer — 2002-10-13
• One-named folk singer — 1999-10-06
• One-named folk singer — 1997-05-29
• Folk singer from Birmingham, Ala. — 1996-12-20
• One-named folk singer — 1995-03-05
• Single-named folk singer — 1994-07-19
• Folk singer from Birmingham — 1994-07-01