See Richard Dyer Bennet The Last Minstrel by Paul Jenkins 2010 which quotes Ives s testimony at length p 72 75 Ives testified on May 20 1952 He explained that he was interested in learning about communism in the 1940s and attended meetings about it but that before long he rejected it The committee asked specifically who invited him to the meetings and that is when he said I am very sorry that I have to bring up names in this matter and told them that it was the folk singer Richard Dyer Bennet But he added that Dyer Bennet also had rejected communism by about 1945 The book does not say that Ives named anyone else Jenkins calls it damning testimony but to say that he and someone else had looked into communism and rejected it years earlier is hardly what is meant by naming names Seeger s main objection was that Ives spoke to the committee at all He wanted solidarity on refusing to testify