Folk singer Peter Yarrow — one-third of the legendary 1960s trio Peter, Paul and Mary — died Tuesday, a family representative said.

The singer-songwriter and social activist best known as one-third of the folk-music group Peter, Paul and Mary, has died at age 86.

Peter Yarrow, the singer-songwriter, activist and founding member of the folk trio Peter, Paul and Mary, has died at 86 after battling bladder cancer.

Peter Yarrow, one third of the chart-topping 1960s folk trio Peter, Paul and Mary and co-writer of 'Puff,the Magic Dragon' has died.

Peter Yarrow, one of three singers in the 1960s folk group Peter, Paul and Mary, has died. He was 86. Yarrow passed away on Tuesday, Jan. 7, after a four-year battle with bladder cancer, his publicist confirmed to The Guardian.