Question: Which movement was lead by the poet who is included among those David S. Reynolds is an expert on?
Sentence (from "David S. Reynolds"): He is the author or editor of fifteen books, and an expert on the Civil War era—including figures such as Walt Whitman, Abraham Lincoln, Herman Melville, Nathaniel Hawthorne, Edgar Allan Poe, Ralph Waldo Emerson, Henry David Thoreau, Emily Dickinson, Harriet Beecher Stowe, George Lippard, and John Brown.
Relevant evidence: Yes