Authors including William Whalen, Shawn Francis Peters and former Witnesses Barbara Grizzuti Harrison, Alan Rogerson and William Schnell have claimed the arrests and mob violence in the United States in the 1930s and 1940s were the consequence of what appeared to be a deliberate course of provocation of authorities and other religions by Jehovah’s Witnesses. In what decade did Barbara Grizzuti Harrison escape the Jehovah's Witnesses