Award-winning author and historian Alexander B. Rossino is the author of several books, including Their Maryland: The Army of Northern Virginia from the Potomac Crossing to Sharpsburg in September 1862 (2021), The Tale Untwisted: General George B. McClellan, the Maryland Campaign, and the Discovery of Lee’s Lost Orders (2023), and Calamity at Frederick: Robert E. Lee, Special Orders No. 191, and Confederate Misfortune on the Road to Antietam (2023). He lives near the Antietam battlefield in Washington County, Maryland.