Warner Bros. won the contract for Private Snafu, and the WB animation director Chuck Jones worked on the series.
Following the war Noble did freelance work in the industry and then took a position doing art for a filmstrip production company in St. Louis.
Noble remained in St. Louis until 1950, when he was invited to come to Warner Bros. to do cartoon layout for Chuck Jones' group, beginning with the short Rabbit Seasoning.
Turning away from the realism of Disney backgrounds, Noble grew into styles using shape and color to define the space.
Noble says: The Jones unit worked with many of Warners characters: Bugs Bunny, Daffy Duck, Road Runner & Coyote.
Other cartoons included the Academy Award nominees From A to Z-Z-Z-Z (1954), High Note (1960), Beep Prepared (1961), Nelly's Folly (1961), and Now Hear This (1962).
This reflected his increased involvement in many phases of the creation process beyond just the layouts, pulling things together and ironing out rough spots.
The bread-and-butter work for the first couple of years was producing cartoons starring MGM's Tom and Jerry characters, but there were an assortment of other projects.
Noble started working again with Ted Geisel for the first time since the war, responsible for the designs used in the TV feature How the Grinch Stole Christmas!
In 1987, he received a lifetime achievement Annie Award (from the International Animation Society) for his contributions over the previous 50 years.
About 1989, Noble did development work on Steven Spielberg's Tiny Toon Adventures, and did writing and design for the "Duck Dodgers Jr." in an episode of "The Return of the Acme Acres Zone" (1990).
Noble continued to be active in a variety of animation projects, including consultation with Disney artists for their first watercolor backgrounds in half a century (for Lilo & Stitch).