Folk singer Peter Yarrow — writer of the timeless classic "Puff the Magic Dragon" and one-third of the legendary 1960s trio Peter, Paul and Mary — died Tuesday, a family representative said. He was 86. Yarrow died in New York City, publicist Ken Sunshine confirmed to NBC News, years after a bladder cancer diagnosis.

Peter Yarrow, the singer, songwriter, and political activist who made up one third of the folk group Peter, Paul and Mary, has died at 86.

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.