Timothy Orr is associate professor of military history at Old Dominion University. He earned his PhD at the Richards Civil War Era Center at Pennsylvania State University. He is author/editor of Last to Leave the Field (2011) and co-author of Never Call Me a Hero (2017), as well as several essays about the Army of the Potomac. He is the book review editor for the Gettysburg Magazine and author of the blog: Tales From the Army of the Potomac. For eight years, he worked as a seasonal ranger at Gettysburg National Military Park.