Henry Wilson Allen
Henry Wilson Allen was an American author and screenwriter. He used several different pseudonyms for his works. His 50 novels of the American West were published under the pen names Will Henry and Clay Fisher. Allens screenplays and scripts for animated shorts were credited to Heck Allen and Henry Allen.
Henry Wilson Allen was born in Kansas City, Missouri. Before he began his writing career he worked variously as a stablehand, shop clerk, and gold miner. In 1937 he began working as a contract screenwriter for MGM animation division. While his early work was for Harman and Isings Barney Bear series, his longest collaboration was with director Tex Avery. Allen was credited as story artist on many classic Avery shorts, included Swing Shift Cinderella, KingSize Canary, and The First Bad Man, among many others. Allen downplayed his contributions to the shorts, claiming that Avery merely used him as a sounding board for his own ideas.
Source: Wikipedia