Composed music for the majority of classic Disney cartoons.
His first score for Disney was 1940's Pinocchio.
His arguably best known scores for Disney include Dumbo, Peter Pan, Der Fuehrer's Face, Toot, Whistle, Plunk and Boom, The Adventures of Ichabod and Mr. Toad, and Fun and Fancy Free.
Was still working at Disney shortly before his death in 1963.
He moved to the United States in 1904 and became an official citizen 10 years later.
He won an Oscar in 1942 for his score for Dumbo with Frank Churchill.