Career
De Maris helped Floyd Gottfredson with many of his early Mickey Mouse comic strips. They co-created famous characters like Phantom Blot, Chief O"Hara and Detective Casey. In 1942 they gave Minnie Mouse a full name as Minerva Mouse, for the four-month comic strip story "The Gleam".
He also helped Carl Barks with one of his Donald Duck stories, titled Too Many Pets.
De Maris also participated at the Disney Studio on the story adaptation for 1937"s Snow White and the Seven Dwarfs.