The Question and Answer section for Short Stories of Ernest Hemingway is a great resource to ask questions, find answers, and discuss the novel.
There really isn't an antagonist in this particular story. The closest thing we have to an antagonist would be Willis Sawyer, the man who blinded Blindy.
Which character (and story) does your question pertain to? Or are you referring to Hemmingway?
I'm sorry, your question cannot be answered as asked. Title of story please?