Mickey Mouse Series #1 was published by David McKay on January 1, 1931, as part of a series that began in 1931. Floyd Gottfredson and Walt Disney write, and art comes from Earl Duvall and Hardie Gramatky. It features Mickey Mouse, Minnie Mouse, Pluto, Clarabelle Cow and Horace Horsecollar, among 13 characters catalogued on VerseDB.