Yarrow began singing in public during his last year at Cornell while participating in
Harold Thompson's popular American Folk Literature course, colloquially known on campus as "Romp-n-Stomp". The course was "a highlight of late-1950s student life at Cornell," Yarrow later recalled, and singing and guitar-playing skills were prerequisites for enrollment. Thompson would lecture on a given topic for 20 or 30 minutes and afterwards a student would sing songs related to his theme. Yarrow served as a student instructor for the class and was paid a stipend of $500 (equivalent to about 20% of his tuition fees), leading students in the songs. These included traditional folk songs and
murder ballads,
Dust Bowl songs made popular by
Woody Guthrie, and songs associated with the
civil rights movement. One day, the two were at
Israel Young's Folklore Center in
Greenwich Village discussing Grossman's idea for a new group that would be "an updated version of
the Weavers for the baby-boom generation ... with the crossover appeal of
The Kingston Trio." Yarrow noticed a picture of
Mary Travers on the wall and asked Grossman who she was. "That's Mary Travers," Grossman said. "She'd be good if you could get her to work." The lanky, blonde Kentucky-born Travers was well connected in Greenwich Village folk circles. While still a student at the progressive
Elizabeth Irwin High School, she had been selected by Elizabeth Irwin's chorus leader,
Robert De Cormier, to join "The Song Swappers" trio in backing up
Pete Seeger in the 1955
Folkways LP reissue of The Almanac Singers'
Talking Union and two other albums. In addition to performing twice with Seeger at Carnegie Hall, Travers had performed the role of a folksinger in
The Next President, a short-lived Broadway play, starring satirist
Mort Sahl, but she was known to be painfully introverted and loath to sing professionally. To draw Travers out, Yarrow went to her apartment on
MacDougal Street, across from
The Gaslight Cafe, one of the principal folk clubs. They harmonized on 'Miner's Lifeguard,' a union song, and decided that their voices blended well. To fill out the trio, Travers suggested Noel Stookey, a friend doing folk music and stand-up comedy at the Gaslight. They chose the catchy "Peter, Paul and Mary" as the name for their group, since
Noel Stookey's middle name was Paul, and rehearsed intensively for six months, touring outside New York before debuting in 1961 as a polished act at
The Bitter End nightclub in Greenwich Village. There, the singers quickly developed a following and signed a contract with
Warner Bros. The trio then released "
If I Had a Hammer", a 1949 song by
Pete Seeger and
Lee Hays, written to protest the imprisonment of Harlem City Councilman
Benjamin J. Davis Jr. under the
Smith Act. "If I had a Hammer" garnered two Grammy Awards in 1962. The trio's first album, the eponymous
Peter, Paul & Mary, remained in the Top 10 for ten months and in the Top 20 for two years; it sold more than two million copies. The group toured extensively and recorded numerous albums, both live and in the studio. In June 1963, Peter, Paul and Mary released a 7" single of "
Blowin' in the Wind" by the then-relatively unknown
Bob Dylan, who was also managed by Grossman. "Blowin' in the Wind" sold 300,000 copies in the first week of release; by August 17, it was number two on the Billboard pop chart, with sales exceeding one million copies. Yarrow recalled that when he told Dylan he would make more than $5,000 () from the publishing rights, Dylan was speechless. On August 28, 1963, Peter, Paul and Mary appeared on stage with the Reverend
Martin Luther King Jr. at his historic
March on Washington where their performance of "Blowin' in the Wind" established it as a civil rights anthem. Their version also spent weeks on
Billboards easy listening chart. By 1964 the 26-year-old Yarrow had joined the Board of the Newport Folk Festival, where he had performed as an unknown just four years earlier. Yarrow's songwriting helped to create some of Peter, Paul and Mary's best-known songs, including "
Puff, the Magic Dragon", "
Day Is Done", "
Light One Candle", and "The Great Mandala". As a member of the trio, he earned a 1996
Emmy nomination for the
Great Performances special
LifeLines Live, a highly acclaimed celebration of folk music, with their musical mentors, contemporaries, and a new generation of singer-songwriters. in 2016 Yarrow was instrumental in founding the New Folks Concert series at both the
Newport Folk Festival and the
Kerrville Folk Festival. His work at Kerrville has been called his "most important achievement in this arena". Yarrow and his daughter, Bethany Yarrow, often performed together. Together with cellist
Rufus Cappadocia, they formed the trio Peter, Bethany, and Rufus. They released the CD
Puff & Other Family Classics. In 2008, the musical special
Peter, Bethany & Rufus: Spirit of Woodstock, featuring a live performance of the band, aired on
public television. Yarrow portrayed leftist intellectual Ira Mandelstam in the 2015 film ''
While We're Young. In the 2024 Bob Dylan biopic A Complete Unknown'', Yarrow is portrayed by Nick Pupo. == Criminal conviction and pardon ==