It looks like James Von Brunn tried to use Wikipedia to promote the work of Willis Carto, the right-wing Holocaust denier and founder of the Liberty Lobby.
Just last month, a Wikipedia user James Von Brunn asked the site’s adminstrators:
How do I get user: James W. von Brunn on Wikipedia website. Also I have a letter from Professor Revilo Oliver pertaining to Willis Carto that I want to attach. ???????”
According to his Wikipedia page, Carto has been accused by some observers of doing more than just about anyone to keep anti-Semitism alive as a political movement in the US during the 50s, 60s, and 70s.
Late Update: The Southern Poverty Law Center, which says it added Van Brunn’s website as a hate site last year, adds:
In the 1980s or early 1990s, von Brunn was employed by Noontide Press, a part of the Holocaust denying Institute of Historical Review, which was then run by Willis Carto, one of America’s most prominent anti-Semites.
So Von Brunn’s ties to Carto appear to go far deeper.