Who is the main character in The Complete Short Stories of Ernest Hemingway by Ernest Hemingway?

Nick Adams is the main character in the stories Indian Camp, The Doctor and the Doctor's Wife, The End of Something, The Three-Day Blow, The Battler, A Very Short Story, Cross-Country Snow, Big Hearted River, The Killers, Ten Indians, A Way You'll Never Be, Fathers and Sons, Summer People, and The Last Good Country.