the excellent "Roots Listening Room" has the 1937 Library of Congress recordings (including "The Hog Went Through the Fence, Yoke and All") of Kentucky Fiddler
Luther Strong...

"It seems that there had been a legendary Owsley County fiddler named Moab "Dude" Freeman, who was something of a vagabond. He wandered around eastern Kentucky like a hobo, even traveled out west and back, and was considered one of the finest fiddlers to ever live in that region. Donald said Strong played more like Freeman than anyone he ever heard, and he was sure that was where Strong learned to play. He said Strong had an extra long bow "and used every bit of it." Rumor had it that he put pennies under the feet of his bridge to get a keener sound, but Donald said he was there when Strong began that practice. He said they were at some local fiddlers' contest, and Strong said he couldn't compete because the bridge was too low on his fiddle and the strings rubbed on the fingerboard. So Donald suggested placing pennies under the bridge to raise it up. It worked well, Strong went on to play "Sally Goodin'" and win the contest, and he liked the pennies so much, that he just kept them there, saying, "It's just like Baby Bear, it's just right." But who knows? They say he was bad to drink from time to time, and a tale went around that when the Library of Congress came around in 1937 to record him, he had no fiddle at all, and they had to haul him out of jail and have him play on a borrowed fiddle."