Historical clue formulations

• She performed while six months pregnant at Woodstock — 2020-08-01
• She performed "We Shall Overcome" at the 1963 March on Washington — 2020-06-25
• Folk singer and protester Joan — 2019-12-16
• Female singer inducted into the Rock and Roll Hall of Fame in 2017 — 2017-12-08
• Joan who sang at Woodstock — 2017-10-23
• "And a Voice to Sing With" memoirist — 2016-12-10
• "Love Is Just a Four-Letter Word" singer — 2016-02-12
• Performer at 1963's March on Washington — 2015-07-25
• Folk singer Joan — 2015-06-02
• Woodstock artist who performed while six months pregnant — 2014-11-20
• Singer of many Dylan songs — 2013-11-26
• Guthrie's follower at Woodstock — 2013-06-15
• "We Shall Overcome" singer — 2012-09-23
• Joan with a guitar — 2012-08-08
• Joan who sang at Woodstock — 2011-12-13
• Woodstock folk singer — 2011-02-22
• "And a Voice to Sing With" memoirist — 2009-09-26
• Dylan was once her protégé — 2009-01-09
• Joan at Woodstock — 2008-06-10
• Guthrie's follower at Woodstock — 2008-01-27
• Folk singer Joan — 2005-11-29
• Female singer at the original Woodstock — 2005-07-20
• "Diamonds and Rust" singer, 1975 — 2004-04-18
• Singer in Bob Dylan's Rolling Thunder Revue — 2003-02-06
• Singer/activist Joan — 2002-08-13
• Performer of many Dylan songs — 2001-11-02
• 59-Across performer — 1999-05-24
• Classic name at the Newport Folk Festival — 1999-02-19
• Newport Folk Festival figure — 1998-11-28
• Folk singer Joan — 1995-08-02