Eric J. Wittenberg's books include The Union Cavalry Comes of Age (Brassey's, Inc., 2003), Protecting the Flank, Glory Enough for All (Brassey's, Inc., 2001), Gettysburg's Forgotten Cavalry Actions, and We Have It Damn Hard Out Here. He edited With Sheridan in the Final Campaign Against Lee, Under Custer's Command (Brassey's, Inc., 2000), and One of Custer's Wolverines. He lives in Columbus, Ohio.