The Critics Group, also known as The London Critics Group, was a group of people who met to explore 'how best to apply the techniques of folk-music and drama to the folk revival' under the direction of Ewan MacColl and Peggy Seeger, with some participation from Bert Lloyd and Charles Parker. Running for eight years from the mid-1960s to the early 1970s, it was not a conventional musical group or band as it had no permanent line-up. Members would perform with each other on an ad-hoc basis as situations demanded.

Jack Warshaw is an American folksinger, songwriter and musician, best known for his 1976 protest song "If They Come in the Morning," aka "No Time for Love." He moved to England in 1965 to start a career as an architect but stayed because the folk music scene and the Vietnam War intervened.