Ah, you smoked me out, Joe.   This is one I can help on. Note the different web site address for Cathy Barton and Dave Para. It has changed since Mary listed their site earlier in the thread.

http://shorock.com/para/civilwar/jw/kate.htm

Cathy and Dave will be here at the Folk Center for Old-Time String Band Week, August 15-19. http://ozarkfolkcenter.com/events-calendar/special-events/default.asp?ID=219 Got any questions for them? As the link notes, they'll be here all week, as will Alan Jabbour and some of our very favorite local instructors. I am sure we can find time for a subject so close to their hearts.