An interesting development: I believe they know go as the (decidedly ambiguous) "Wildwood Bluegrass" band. I found an Angelfire blog site of a man who went to a bluegrass festival with a band of that name with members including Robert Earl Lowery (son of Jim/Leion /Ronny Lowery) [banjo], Dean George [probably the same mandolin player], and Lomax Austin [possibly the original fiddle player?]. Adding to the similarities, they're based out of Columbus, Georgia, which was where the record company was from. He left a phone number to contact them that I may or may not try at some point. If I don't post anything in a couple days, someone else can try calling them if they want.

Source: http://www.angelfire.com/electronic2/ronrollins/page6.html

Once I found "Lomas's" real name (Lomax), I was able to find that he is still fiddling and playing in conventions as of 2014 at the ripe old age of 94!

Ronnie Lowery was alive as of 2010 but I can't find much else about him: http://ufdc.ufl.edu/UF00028312/00489