Mary Travers, one third of the hugely popular 1960s US folk group Peter, Paul and Mary, has died after a battle with leukaemia aged¹ 72.

Mary Traverse，美国20世纪60年代流行民乐组合三成员之一（Peter、Paul和Mary），因患白血病辞世，享年72岁。

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The group released their debut album in 1962

A statement on the group's website said the singer succumbed³（屈从，死） "to the side effects of one of the chemotherapy（化学疗法） treatments" she was undergoing.

She had been suffering from leukaemia（白血球过多症） for several years.

Peter, Paul and Mary had hits including If I Had a Hammer, Lemon Tree and Puff⁴, The Magic Dragon.

They became known for their mixture of liberal politics with folk music that won them a loyal following of fans and also five Grammy Awards.

Outspoken⁵ supporter

Bandmate Peter Yarrow said that in her last months, Travers handled her declining health "in the bravest, most generous way imaginable".

He added that throughout her long career, Travers sang with honesty and complete authenticity（确实性，真实性）.

"I believe that, in the most profound of ways, Mary was incapable⁶ of lying, as a person, and as an artist - that took great courage, and Mary was always equal to the task."

Noel "Paul" Stookey, the trio's other member, praised the singer for her inspiring activism, "especially in her defence of the defenceless."

"I am deadened and heartsick（悲痛的，苦恼的） beyond words to consider a life without Mary Travers and honoured beyond my wildest dreams to have shared her spirit and her career," he said.

Travers was an outspoken supporter of the civil rights and anti-war movements.

The group travelled the world and frequently appeared at political rallies and demonstrations⁷, including the March on Washington in 1963.

Travers kept up her activism after Peter, Paul and Mary broke up in the early 1970s. She performed as a solo artist before the trio（三重奏） later reunited for benefits and other concerts.

She underwent a successful bone marrow⁸ transplant to treat her leukaemia and told The Associated Press in 2006 she was "feeling fabulous（传说的，难以置信的）".

But by mid-2009, Yarrow told a Washington radio station that the singer's condition had worsened again and thought she would no longer be able to perform.

Travers is survived by（比……活得长） her husband, Ethan Robbins and daughters, Alicia and Erika.