Roots of Peter, Paul and Mary

Peter Seeger was an American singer, songwriter, musician, and social activist. He was a fixture on nationwide radio in the 1940s, and had a string of hit records in the early 1950s as a member of The Weavers, especially their recording of Lead Belly's "Goodnight, Irene", which topped the charts for 13 weeks in 1950. Members of the Weavers were blacklisted during the McCarthy Era. In the 1960s, Seeger re-emerged on the public scene as a prominent singer of protest music in support of international disarmament, civil rights, workers' rights, counterculture, environmental causes, and ending the Vietnam War.

The Kingston Trio is an American folk and pop music group that helped launch the folk revival of the late 1950s to the late 1960s. The group started as a San Francisco Bay Area nightclub act with an original lineup of Dave Guard, Bob Shane, and Nick Reynolds. It rose to international popularity fueled by unprecedented sales of LP records and helped alter the direction of popular music in the U.S.

The Hooters is an American rock band, which was founded in Philadelphia in 1980. They combine elements of rock, reggae, ska, and folk music.

Eric Andersen is an American folk music singer-songwriter, who has written songs recorded by Johnny Cash, Bob Dylan, Judy Collins, Linda Ronstadt, the Grateful Dead, Rick Nelson, and many others. Early in his career, in the 1960s, he was part of the Greenwich Village folk scene. After two decades and sixteen albums of solo performance, he formed Danko/Fjeld/Andersen with Rick Danko and Jonas Fjeld, which released two albums in the early 1990s.

Fred Neil was an American folk singer-songwriter active in the 1960s and early 1970s. He is mainly known through other people's recordings of his material, particularly "Everybody's Talkin'", which became a hit for Harry Nilsson after it was used in the film Midnight Cowboy in 1969. Though highly regarded by contemporary folk singers, he was reluctant to tour and spent much of the last 30 years of his life assisting with the preservation of dolphins.

Jesse Fuller was an American one-man band musician, best known for his song "San Francisco Bay Blues".

"Don't Think Twice, It's All Right" is a song written by Bob Dylan in 1962 and released the following year on his second studio album The Freewheelin' Bob Dylan and as the B-side of the single "Blowin' in the Wind". The song has been covered by many other artists, most notably by Peter, Paul and Mary who released it as a single reaching the Top 10 of the Billboard Hot 100.

The Bootleg Series Vol. 9: The Witmark Demos: 1962–1964 is a compilation album by American singer-songwriter Bob Dylan, containing demo recordings he made for his first two publishing companies, Leeds Music and M. Witmark & Sons, from 1962 to 1964. The seventh installment of the ongoing Bob Dylan Bootleg Series, it was released on October 19, 2010, on Legacy Records.