There used to be a known Feist breeder in Olive Hill, Kentucky. Years ago and don't remember his name. A google may turn something up.
Also out of Leburn,Ky. the well known Buckley Mountain Feist Line:
GREYTAIL'S MOUNTAIN FEIST SQUIRREL DOGS This is for my squirrel mountain feist squirrel dogs that has been in my family for
over 100 years.
You may want to check here also for a possible line in your area:
Mountain Feist Dog Breed Puppies Mountain Feist Breeders & Puppies For Sale If your a Mountain Feist breeder and
have Mountain Feist puppies for sale, send us your details for free and we will ...
Hope this helps...