Alex:  You are sadly misinformed if you think that only one or two anti-semites "snuck into" the JBS.  Instead, Robert Welch hired them as writers for JBS publications and as paid speakers for the JBS.  Examples include:  Eric D. Butler, Westbrook Pegler, Revilo Oliver, Gordon (Jack) Mohr.  

The list of JBS members who were racists and/or anti-semites is so long that nobody could possibly list them all in this limited space.  They range from officials of the White Citizens Councils movement (Medford Evans, Dr. Thomas Parker, William J. Simmons, Louis Hollis, Kent Steffgen) to racists or neo-nazis like Ben Klassen, Kevin Strom, Thomas Metzger, Mary Davison, William Story, Rev. Ferrell Griswold, George Deatherage, Edwin A. Walker, Robert and Mary Surrey, R. Carter Pittman, Gerald Carlson, William Potter Gale, James Oviatt, Wilma Oswolt, --and I have to stop here only because of space limitations of this website.