This is actually a pre-rockabilly style known as Hillbilly Boogie, that came around near the end of the 1940s.
Wayne Raney recorded under his own name as singer and also with the Delmore Brothers as harmonica player - sometimes with dual harmonica players, the other being his mentor, Lonnie Glosson. =========== Winslow
Winslow, that's interesting. I listened to this yesterday and thought it didn't quite sound like what I think of as rockabilly (although it's fun). I wasn't sure what to call it and was still thinking on it.
Then there's Onie Wheeler, who had a harmonica gig with country legend Roy Acuff (even though country harmonica legend Jimmy Riddle was also in the band on piano). But Onie had his own thing going as well: