From British daily The Guardian:
The band’s publicist, Heather Lylis, said Travers died yesterday at Danbury Hospital in Connecticut. She was 72 and had leukemia for several years.
Travers joined forces with Peter Yarrow and Noel Paul Stookey in the early 1960s.
The trio mingled their music with liberal politics both onstage and off. Their version of If I Had a Hammer became an anthem for racial equality. Other hits included Lemon Tree, Leaving on a Jet Plane and Puff the Magic Dragon.
The band were early champions of Bob Dylan and performed his Blowin’ in the Wind at the August 1963 march on Washington.
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. …
Over the years they enjoyed several reunions, including a performance at a 1978 anti-nuclear benefit organised by Yarrow and a 35th anniversary album, Lifelines, with fellow folkies Ramblin’ Jack Elliott, Dave Van Ronk and Pete Seeger. A boxed set of their music was released in 2004.
They remained politically active as well, performing at the 1995 anniversary of the Kent State shootings and performing for California strawberry pickers.
See also here.
I have not been able to find a video of Peter, Paul, and Mary’s anti Vietnam war song The Great Mandala by Peter, Paul, and Mary themselves on the Internet. Here is a cover version. The lyrics are here.
When You’re Strange: A Film about the Doors—what was it about the 1960s? Here.