(29 November 1927 - 23 October 1967) (her death)
At Oxford, he met his future wife, Helen Palmer, whom he married in 1927, and returned to the United States without earning a degree.
On October 23, 1967, suffering from a long struggle with illnesses including cancer—as well as emotional pain over her husband's affair with Audrey Stone Dimond—Geisel's wife, Helen Palmer Geisel, committed suicide. Geisel married Dimond on June 21, 1968. Though he devoted most of his life to writing children's books, Geisel had no children of his own. He would say, when asked about this, "You have 'em; I'll entertain 'em."