What was the pen name used by C.S. Lewis for his early poem Dymer?

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

Dymer was published in 1926, before Lewis became famous as a Christian apologist and children's author. It is a long narrative poem about a character who becomes involved with a monstrous figure and a strange, symbolic world. The work reflects Lewis's early interest in myth, medieval literature, and imaginative poetry.

The name Clive Hamilton combined Lewis's first name with a family name associated with his mother, Florence Augusta Hamilton Lewis. Using a pseudonym allowed him to publish poetry without relying on the reputation he would later build under the name C.S. Lewis.

Dymer is often overlooked because Lewis's later prose works are much more widely read. It should also be distinguished from Spirits in Bondage, his first published poetry collection, which appeared in 1919 under the name Clive Hamilton. That earlier book and Dymer share the same pen name, making Clive Hamilton the precise answer for the question about Dymer.