Question: Which writer, P. C. Wren or Louis L'Amour, wrote books consisted primarily of Western novels?
Sentence (from "Louis L'Amour"): His books consisted primarily of Western novels (though he called his work 'frontier stories'); however, he also wrote historical fiction ("The Walking Drum"), science fiction ("The Haunted Mesa"), non-fiction ("Frontier"), as well as poetry and short-story collections.
Relevant evidence: Yes