Millard Kaufman, the Hollywood screenwriter who was instrumental in the creation of Mister Magoo, passed away last Saturday at age 92. The LA Times provides an informative obituary. He received a story credit on the first Magoo short Ragtime Bear in 1949, and along with John Hubley, is considered to be one of the primary architects of the character. In addition to the Magoo short, he co-wrote the UPA Fox and Crow short Punchy de Leon with Phil Eastman, and if I’m not mistaken, he also wrote a number of military training films (uncredited) for UPA during the 1940s.
In memory, here is the short Ragtime Bear: