Gene M. Thorp is an award-winning cartographer and writer who worked at The Washington Post for 15 years. His freelance maps can be found in numerous books on the New York Times bestseller list and throughout major museums and parks. Gene currently works at the U.S. Department of State.
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.