Ousted TVA Chairman tells his story. Washington, D.C., May 25. Appearing as the first witness before the Joint Congressional TVA Investigating Committee today, Dr. Arthur E. Morgan deposed Chairman of the Tennessee Valley Authority, declared that his two co-directors had engaged in "misrepresentations and hypocrisy", but made no effort to show they had been guilty of corrupt practices. he is pictured with Senator Vic Donahey, (left) Chairman, and Rep. James M. Mead, CO-Chairman of the committee, 5/5/38