We are just kind of bouncing all around here and seem to be a long ways from the Butterfly Parking Lot.  I seriously doubt your statement about Oregon being the last place for an active group is true.  Here is a little help for you on that thought:  https://en.wikipedia.org/wiki/Ku_Klux_Klan
But it does beg the question of why they went away and haven't returned if Oregon is such a hotbed of racism?  As far as Deady Hall goes, it is Uof0 (zero) property and they can number or name it anything they want unless there is some legal restriction like the Skinner Deed.  Ah, we have come full circle.