Theodor Seuss Geisel (2 March 1904 – 24 September 1991) better known by the pen name of Dr. Seuss, was a liberal children's author who wrote over 60 books between 1937 and 1990, including such classics as Green Eggs and Ham, How the Grinch Stole Christmas and The Cat in the Hat. He was married to Helen Palmer, who committed suicide in 1967, and then married Audrey Stone in 1968. He had no children.
Seuss identified himself as a liberal Democrat, and his political views often show up in his work. The Lorax, often considered a metaphorical piece on environmentalism, features a lorax, who warns of impending doom, should The Once-ler, a stand-in for corporate greed, continue in it's destruction of the rare "truffula trees", to create thneeds. The Once-ler ignores his advice, until the very last truffula tree is destroyed, and proceeds to spend the rest of his life regretting his choices.
On the other hand, Seuss's book Horton Hears a Who is heavily promoted in pro-life circles, mostly because of the repeated line "A person's a person, no matter how small!" Seuss denied any pro-life metaphors in the book and claimed that it was a metaphor for the Hiroshima bombing.