Marcus Mouse is her fatherâ s name . His name was first used in the comic strip story â Mr. Slicker and the Egg Robbersâ ( published 22 September - 26 December , 1930 ) . The comic strip story `` Mr. Slicker and the Egg Robbers '' ( published September 22 -- December 26 , 1930 ) introduced her father Marcus Mouse and her mother Margie Mouse , both farmers .