Dr. Seuss's Real Name: Theodor Seuss Geisel

Quick answer: The writer is known professionally as Dr. Seuss. Britannica gives the form Theodor Seuss Geisel and, with Biography.com, dates his birth to March 2, 1904, in Springfield, Massachusetts, and his death to September 24, 1991, in La Jolla, California (Britannica; Biography.com).

Real name and early life

Independent publishers support the documented name Theodor Seuss Geisel. Britannica calls Dr. Seuss a pseudonym of Theodor Seuss Geisel and places the birth in Springfield, Massachusetts, and the death in La Jolla, California. Biography.com independently dates the same birth in Springfield, names his father, Theodor Robert Geisel, a brewmaster, and his mother, Henrietta Seuss Geisel, and dates the death to September 24, 1991, at age 87, in La Jolla, California. The official Dr. Seuss Enterprises biography independently gives Theodor Seuss Geisel, the Springfield birth date, and the September 24, 1991, death.

Britannica says he graduated from Dartmouth College (B.A., 1925) and did postgraduate studies at Lincoln College, Oxford, and at the Sorbonne. Biography.com independently says he attended Dartmouth, became editor in chief of its humor magazine, Jack-O-Lantern, and later attended Oxford before dropping out in 1927. Biography.com says he began contributing to that magazine under the pseudonym Seuss after being removed from the staff. The official biography independently says he first adopted the Seuss pen name while writing for Jack-O-Lantern.

Career highlights

Britannica and Biography.com independently say his first children's book, And to Think That I Saw It on Mulberry Street, was published in 1937 under the name Dr. Seuss, after many rejections, and that he had already worked as an illustrator and in advertising, including well-known ads for Flit insect repellent. Britannica names later books including Horton Hears a Who!, How the Grinch Stole Christmas!, The Cat in the Hat, Green Eggs and Ham, Hop on Pop, Horton Hatches the Egg, and The Lorax, and records a Pulitzer Prize in 1984. Biography.com independently highlights The Cat in the Hat and Green Eggs and Ham among more than 60 books. The official biography independently names The Cat in the Hat, How the Grinch Stole Christmas!, and Green Eggs and Ham.

Death

Britannica dates his death to September 24, 1991, in La Jolla, California. Biography.com independently says he died that day, at 87, in La Jolla, California. The official biography independently dates the death to September 24, 1991.

Name notes for searchers

People looking up Dr. Seuss or Theodor Seuss Geisel are looking for the same American writer. Independent sources support the documented name used in the title.