Question: Were  Sidney Sheldon and W. Somerset Maugham both writers?
Sentence (from "Robert Calder (writer)"): Robert Lorin Calder, a Canadian writer and professor, won the Governor General's Award for English-language non-fiction in 1989 for his "Willie: The Life of W. Somerset Maugham", a biography based on extensive archival work and interviews with surviving associates of Maugham, in particular Alan Searle.
Relevant evidence: No