Woody Guthrie and Burl Ives in Central Park, New York, 1940. Library of Congress, Prints & Photographs Division, NYWT&S Collection

Josh White testifying before the House Un-American Activities Committee, accompanied by his wife, 1950. Library of Congress, Prints and Photographs Division, NYWT&S Collection

Flier for the Weavers’ reunion concert at Carnegie Hall on Christmas Eve, 1955. Courtesy Harold Leventhal Collection, photographed by John Halpern

New York – December 1958: Folk vocal group The Weavers (L-R: Erik Darling, Ronnie Gilbert, Lee Hays, Fred Hellerman) pose for a portrait in December, 1958 on a rooftop in Greenwich Village, New York City, New York. (Photo by David Gahr/Estate of David Gahr)

Ray Sullivan, Izzy Young introduces blues singer and guitarist Reverend Gary Davis at a Folk Festival at Town Hall, March 8, 1958. Courtesy Ronald D. Cohen Collection #20239, Southern Folklife Collection, The Wilson Library, University of North Carolina at Chapel Hill / image © Ronald D. Cohen

Musicians in Washington Square Park, 1955-65. Museum of the City of New York. Gift of Nat Norman

Aaron Rennert, Ralph Rinzler of the Greenbriar Boys, Woody Guthrie, Oscar Brand, and the Kossoy Sisters at a party at the apartment of Shanty Boys member Lionel Kilberg, August 1959. Courtesy Ronald D. Cohen Collection #20239, Southern Folklife Collection, The Wilson Library, University of North Carolina at Chapel Hill / image © Ronald D. Cohen

Frederick Kelly, Musicians in Washington Square, April 1962. Museum of the City of New York. Gift of Rena C. Kelly

Newport, RI – July 1963: An encore ensemble (L- R: Peter Yarrow, Mary Travers, Paul Stookey, Joan Baez, Bob Dylan, Bernice Reagon, Cordell Reagon, Charles Neblett, Rutha Harris, Pete Seeger) sing the civil rights anthem “We Shall Overcome’ at the finale of the Newport Folk Festival in July, 1963 in Newport, Rhode Island. (Photo by David Gahr/Getty Images)

Original Manuscript of “Blowin’ in the Wind,” 1962. Courtesy Ed Kosinski

Flier for Bob Dylan’s first official solo concert on November 4, 1961, at Carnegie Chapter Hall. Courtesy Ronald D. Cohen

Tickets to two Bob Dylan concerts, 1963. Courtesy Harold Leventhal Collection, photographed by John Halpern