The below list was written by Chaim but the last three which I bolded in black were due to Shelley Rubin vandalism. Wikipedia will say JTF vandalizes if the original writing was put back on the article.
Chairmen
According to the organization's official list of Chairmen or Highest Ranking Directors:[19]
1968–1971 – Rabbi Meir Kahane, International Chairman. Assassinated in 1990 by Islamic militant El Sayyid Nosair.
1971–1973 – David Fisch, a religious Columbia University student, who later wrote articles for Jewish magazines and the book Jews for Nothing.
1974–1976 – Russel Kelner, originally from Philadelphia. Formerly a U.S. Army lieutenant trained in counter-guerrilla warfare, he moved to New York City to direct the JDL's paramilitary summer camp JeDeL located in Wawarsing, New York,[20] and later to run the national office as chairman.
1976–1978 – Bonnie Pechter.
1979–1981 – Brett Becker, originally from South Florida, came to New York City to become chairman.
1981–1983 – Meir Jolovitz, originally from Arizona, also came to New York City.
1983–1984 – Fern Sidman, Administrative Director.
1985–2002 – Irv Rubin, International Chairman. Arrested on terrorism charges; died in jail awaiting trial.
2002–present – Shelley Rubin, Administrative Director (2002–2006); Chairman/CEO (2006–present).
The Rubins removed Chaim from the list in two places. It should say Chaim for 3 months in 1978 after he got Pechter of out of JDL. It should say Chaim form 1984-1987. Notice how the Rubins make up titles. There is no Administrative Director like they say. The title International Chairmen is also made up by the Rubins. Some of it is even made up retroactively. They said it's an honorary title because Rubin was killed like The Rav (LeHavdil). I think Chaim or Jimmy Sullivan posted the above list on to the old JTF Forum that was on ProBoards and then JTF people members attempted to write an article on Wikipedia with the titles. Shelley Rubin changed the list to fit her imagination. Basically it's written by Chaim including the part saying "came to New York". Basically they didn't give credit and changed the parts they didn't like.