They were early champions of Bob Dylan and performed his “Blowin’ in the Wind’’ at the August 1963 March on Washington.
And they were vehement in their opposition to the Vietnam War, managing to stay true to their liberal beliefs while creating music that resonated in the American mainstream.
The group collected five Grammy Awards for their three-part harmony on such enduring songs as “Leaving on a Jet Plane’’; “Puff (The Magic Dragon)’’; and “Blowin’ in the Wind.’’
At one point in 1963 as they became the biggest stars of the folk revival movement, three of their albums were in the top six Billboard best-selling LPs.
It was heady stuff for a trio that had formed in the early 1960s in Greenwich Village, running through simple tunes such as “Mary Had a Little Lamb.’’
They debuted at the Bitter End in 1961, and their beatnik look - a tall blonde flanked by a pair of goateed guitarists - was a part of their initial appeal. As New York Times critic Robert Shelton put it not long afterward, “Sex appeal as a keystone for a folk-song group was the idea of the group’s manager, Albert B. Grossman, who searched for months for ‘the girl’ until he decided on Ms. Travers.’’
Their debut album came out in 1962 and immediately scored a pair of hits with their versions of “If I Had a Hammer’’ and “Lemon Tree.’’ The former won them Grammys for best folk recording and best performance by a vocal group.
“Moving’’ was the follow-up, including the hit tale of innocence lost, “Puff (The Magic Dragon).’’
Album No. 3, “In the Wind,’’ featured three songs by the 22-year-old Dylan. “Don’t Think Twice, It’s Alright’’ and “Blowin’ in the Wind’’ both reached the top 10, bringing Dylan’s material to a massive audience; the latter shipped 300,000 copies during one two-week period.
“Blowin’ In the Wind’’ became a civil rights anthem, and Peter, Paul and Mary fully embraced the cause. They marched with Martin Luther King Jr. in Selma, Ala., and performed at his speech in Washington.