He began imitating birds and various barnyard animals as a child growing up in Watonga, Oklahoma. In his teens his family moved to Southern California where he got a promotional job with a dairy company and in between jobs performed animal imitations at various Los Angeles schools. In 1934 hearing that Walt Disney was looking for bird and animal recordings for his cartoons Clarence went to the studios and went through his repertoire of voices during which Walt walked in and said “That fellow sounds like a duck, lets keep him in mind if we ever create a duck character”
It wasn’t long after that , that Donald Duck made his debut in “The Wise Little Hen” with Clarence providing his voice. When the film was finished and shown Donald stood out so prominently that he was put into the Mickey Mouse film “Orphan’s Benefit” and soon after was getting star billing in his own films and has been in more than Mickey.
With the help of language coaches Clarence has quacked in Spanish, French, German, Swedish, Dutch, Portugese and Japanese.