Katherine Curber is Brush Curber's wife, having been married to him for forty years. She is also the mother of fourteen children, Hal, Brush Junior, Penelope, Jake, Marty, Willard, Ingrid, Lucille, Scotty, Wendell, Aimee, Kassidy, Florence, and Truman.[1]
She makes no physical appearance in the Cars series, having been mentioned in Brush Curber's Car Finder bio.