Lionel West (Absent in the Spring)

In the novel Absent in the Spring, Lionel West is a friend of Joan Scudamore. While stranded at Tell Abu Hamid waiting for a train, she considered writing him a letter to describe her sensations. In the end she decided to write to Janet Annesmore instead.

There are two Lionel Wests in the Christie canon. One of them is the son of Raymond West. It is unlikely that they are the same person.