Dave Laing was editor of Let It Rock magazine, author of Buddy Holly, The Sound of Our Time and Hail Rock'n'Roll, and a trustee of the folk music charity Square Roots Productions. He died in 2019. Robin Denselow has worked as a film director and correspondent covering politics and music for BBC TV and radio, and has written on folk, rock, and world music for The Guardian. He is the author of When the Music's Over: The Story of Political Pop. Robert Shelton was folk, rock, and country critic for The New York Times and a regular music reviewer for The Times. His wrote five books, including The Country Music Story and the biography of Josh White, and edited Woody Guthrie's Born to Win. He died in 1995. Karl Dallas was a regular contributor to Melody Maker and other publications, and the author of three books, including Singers of an Empty Day. He died in 2016.