Michael David Cohen, a historian of nineteenth-century America, is a research professor in the Department of Government and a faculty fellow in the Center for Congressional and Presidential Studies at American University. He serves as editor of the Correspondence of Zachary Taylor and Millard Fillmore. From 2009 to 2019, he edited the Correspondence of James K. Polk at the University of Tennessee, Knoxville. Earlier he earned his PhD at Harvard University and worked on the Papers of Elizabeth Cady Stanton and Susan B. Anthony at Rutgers University. Besides three volumes of the Polk series, Dr. Cohen has published articles in peer-reviewed journals and the book Reconstructing the Campus: Higher Education and the American Civil War.