Alan Lomax was an American field collector of folk music of the 20th century. He was also a folklorist, ethnomusicologist, archivist, writer, scholar, political activist, oral historian, and film-maker. Lomax produced recordings, concerts, and radio shows in the US and in England, which played an important role in both the American and British folk revivals of the 1940s, 1950s and early 1960s. He collected material first with his father, folklorist and collector John A. Lomax, and later alone and with others, Lomax recorded thousands of songs and interviews for the Archive of American Folk Song, of which he was the director, at the Library of Congress on aluminium and acetate discs.