Jump to: navigation , search "Theo Geisel" redirects here. Dr. Seuss Theodor Seuss Geisel surrounded by his literary works, including one of his most famous, The Cat in the Hat . Born Theodor Seuss Geisel March 2, 1904 ( 1904-03-02 ) Springfield, Massachusetts , United States Died September 24, 1991 (aged 87) San Diego, California ,