I didn't know about Rod Scribner until I read Tom Sito's post about him on Facebook.
The clue was the work he did on Daffy Duck in the "Great Piggy Bank Robbery".
After his work under Bob Clampett, Scribner left Looney Tunes to work at UPA.
Wikipedia Rod Scribner went on to work at Playhouse Pictures in Hollywood. I was able to get some freelance there years ago on a Tony the Tiger commercial. I misread the Wikipedia article, thinking that Scribner founded Playhouse, but it gave me some feeling of connection learning that I had worked briefly under the same roof where Mr. Scribner had been.