Chambers, (David) Whittaker at English => English (The Britannica Concise) Of Explained:
U.S. journalist. Born in Philadelphia, he joined the Communist Party in 1923 and worked at various times as an editor at New Masses, The Daily Worker, and Time magazine. In August 1948, before the House Un-Amer. Activities Committee, he named A. Hiss as a fellow member of a 1930s Communist spy ring. Hiss denied the charges and sued Chambers for slander. In the trials that followed, Chambers produced material he claimed Hiss had given him to pass along to Soviet agents. His autobiography, Witness, was published in 1952.