NGS-National Genealogy Society said they 'have tried regional conferences in the south past without success'. I am assuming in the south--no exact place was said. But this is their way of conducting conference--they go from east to west then north to south.
2013 May 8-11 2013, Las Vegas
2014 Richmond Va. no date given
2015 May 13-16 St Charles, Mo according to area of location it must be in St Louis Mo, Hyatt Regency at the Arch--Riverfront.

So at least 2 have responded. I am waiting on 2 more to step up with a response. Again I will not out any of the snail mail contacts, unless there is information to share.