What pen name did C.S. Lewis use for the 1926 poem Dymer?

C.S. Lewis used the pen name Clive Hamilton for the 1926 poem Dymer.

Dymer was Lewis’s second published book and appeared as a long narrative poem. It was issued under “Clive Hamilton,” combining his first name with his mother’s maiden name, Hamilton. The poem presents a dark, symbolic story about a rebellious young man and reflects Lewis’s early interest in myth, allegory, and epic literature.

Lewis had already published Spirits in Bondage in 1919 under the name Clive Hamilton. That earlier volume was also associated with the same pseudonym. He later abandoned the Hamilton identity for most of his major fiction and nonfiction, publishing as C.S. Lewis.

N.W. Clerk is a different pseudonym: Lewis used it for A Grief Observed in 1961. J.R.R. Tolkien was Lewis’s friend and fellow Oxford scholar, but he did not write Dymer. These separate names are a frequent source of mix-ups in Lewis bibliographies.