Blackburn began his career as an animator for Walt Disney before moving to NBC in New York. While at NBC, he was responsible for redesigning the Howdy Doody puppet.
Merrie Melodies starring Clarence In "Goldfish Follies" (1932)
The studio was not the "WB cartoon studio" in 1930. It was the Harman-Ising Studio from 1930-33, the Leon Schlesinger Studio from 1933-45 and only the WBB Animation studio after that. Fleischer studio