Clarence was amazing. I saw him, Roger, Skip Battin, and Gene Parsons at Freedom Hall in Louisville KY in 1971. There were probably 200 people in a venue designed to hold 12,000. That didn't stop them from performing a great show when the house lights went down and the stage lights came up. I remember Clarence as the short bearded guy with flying fingers who coaxed everything from steel-guitar whines to ripping country leads to cascades of notes that sounded like sonic waterfalls.
I think it was just a year later that White was hit and killed by a car while loading an amp into his back seat. Gram Parsons remembered him in In My Hour of Darkness...

Another young man safely strummed
His silver-stringed guitar
and played to people everywhere
some say he was a Star
But he was just a country boy
his simple songs attest
and the music he had in him
so very few possess