Bernard Weissman was born on 1st November, 1937. After graduating from Edison Technical High School in Mount Vernon in June, 1956, he went to work for the Nuclear Development Corporation as an experimental machinist. He the moved to New Jersey where he was employed as a sales manager.
In August, 1961, Weissman joined the U.S. Army and served in Germany where he met Larrie Schmidt. The two men shared an interest in right-wing politics and were both supporters of the John Birch Society. While in Germany the two men discussed the possibility of establishing a right-wing political group when they returned to the United States.
Weissman was discharged in August 1963 but was unable to find work. Short of money, Weissman contacted Larrie Schmidt who at that time was living in Dallas. Schmidt told Weissman about his involvement in the attack on the liberal politician, Adlai Stevenson. According to Schmidt, this had been organized by General Edwin Walker. Schmidt added that his brother was working as General Walker's chauffeur and general aide.
Schmidt invited Weissman to Dallas. Weissman later told the Warren Commission that Schmidt argued: "If we are going to take advantage of the situation, or if you are," meaning me, "you better hurry down here and take advantage of the publicity, and at least become known among these various right-wingers, because this is the chance we have been looking for to infiltrate some of these organizations and become known," in other words, go along with the philosophy we had developed in Munich."
Weissman arrived in Dallas on 4th November, 1963. Soon afterwards Weissman joined an organization called the Young Americans for Freedom. Schmidt also invited Weissman to join the John Birch Society but according to his testimony before the Warren Commission he changed his mind when he discovered too many of them were anti-Semitic (Weissman was Jewish). While in Dallas he found work as a carpet salesman.
Larrie Schmidt introduced Weissman to Joseph P. Grinnan of the John Birch Society. Grinnan was involved in organizing protests against the visit of John F. Kennedy. Grinnan seemed to know about the visit before it was officially announced to the public. Grinnan suggested that they should place a black-bordered advert in the Dallas Morning News on 22nd November, 1963. The advert cost $1,465. Grinnan supplied the money. He claimed that some of this came from Harvey Bright, Edgar R. Crissey and Nelson Bunker Hunt, the son of Haroldson L. Hunt. Weissman was given the task of signing the advert and taking it to the newspaper office.
The advert attacked Kennedy's foreign policy as being anti-American and communistic. This included the claim that Gus Hall, "head of the U.S. Communist Party praised almost every one of your policies and announced that the party will endorse and support your re-election in 1964". It also attacked Kennedy's domestic policies. Another passage asked why Robert Kennedy had been allowed "to go soft on Communists, fellow-travelers, and ultra-leftists in America."
Weissman was shocked by the assassination of President John F. Kennedy and told Larrie Schmidt he feared he would be accused of being involved in the killing. Weissman suspected that Kennedy had been killed by supporters of General Edwin Walker and that as a result he would be implicated in the plot. However, he told the Warren Commission he felt relieved when he discovered that Lee Harvey Oswald had been arrested for the murder. The Warren Commission did not ask how he knew that Oswald was not a right-winger. Despite this news, Weissman and Schmidt decided to leave Dallas
Mark Lane testified before that Warren Commission that Thayer Waldo, a journalist on the staff of the Fort Worth Star-Telegram, had told him that Weissman was involved in a two-hour meeting with Jack Ruby and J. D. Tippit at the Carousel Club on 14th November, 1963. According to Joachim Joesten, the author of How Kennedy Was Killed (1968), has argued "a rich oil man" was also at this meeting. Weissman denied he had ever been to the Carousel Club and had never met Ruby or Tippit.
George Senator told reporters that Jack Ruby had tried to contact Weissman after the assassination. Seth Kantor, the author of Who Was Jack Ruby? (1978) has pointed out that: "He (Ruby) couldn't get to Bernard Weissman. There was no such person in the Dallas phone book."