Animation between 1930s and 1950s.

Disney.

Disney is known to be the first person to ever create a full length cartoon, Disney's first full length cel-animation was snow white which he created it around December 21s 1931, Snow white was the first animated feature film produced in America, the first which was produced in colour and the first to be considered a Walt Disney Animated classic.

Pinocchio was the second film in the Walt Disney classics.

Fleischer Brothers

The Fleischer brothers were two American producers of animated cartoons featuring such characters as Betty Boop and Popeye. Producer Max Fleischer born July 19, 1883, Vienna, Austria—died Sept. 11, 1972, Woodland Hills, and director Dave Fleischer born July 14, 1894, New York, N.Y.,died June 25, 1979, Hollywood, Calif, were considered Walt Disney’s main rivals in the 1930s.

Art Clokey

Art Clokey is best known for creating Gumby, the green clay Charactor with his horse friend Pokey. Clokey created Gumby as a student project , but then it lead to him making shorts eposiods for the Howdy Doody Show.