. "The Plow Boy (1929)" . . . "Horace Horsecollar"@en . . . . "Horace Horsecollar is a cartoon character created in 1929 by Ub Iwerks and Walt Disney. Horace is a tall anthropomorphic black horse and is one of Mickey Mouse's best friends. Characterized as a cheerful know-it-all, Horace helped Mickey on his sleuthing expeditions in the comics before Goofy assumed that role."@en .