According to http://www.kkk.bz/nationalleaders.htm, Thomas Robb is the national director of the Knights of the Ku Klux Klan. To clarify where the KKK Headquarters is located, though Robb's address reads Harrison, Arkansas, his home and headquarters are located in Zinc, Arkansas. The E911 system gives everyone in Boone County, Arkansas a Harrison street address. Again, according to his website, Robb is an ordained Baptist minister. Wikipedia
The definitive Wikipedia entry for Thomas Robb. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Thomas_Robb