Could his World War I (WWI) experience have affected Hemingway as the short story writer of "A Day's Wait"? Explain your answer.

A lot of Hemmingway's stories are based on his WW1 experience. A Day's Wait is not an exception. Most Hemingway scholars believe the narrator of this story, though unnamed, is actually Nick Adams, Hemingway’s semi-autobiographical character who appears in a series of stories. Hemingway’s official biographer Carlos Baker was the first to make this claim, and the fact that original manuscripts for “Fathers and Sons,” one of Hemingway’s confirmed Nick Adams stories, calls Adams’s boy “Schatz” seems to clinch the mater.