The Tale Untwisted: General George B. McClellan, the Maryland Campaign, and the Discovery of Lees Lost Orders

The discovery of Robert E. Lee’s Special Orders No. 191 outside of Frederick, Maryland, on September 13, 1862, is one of the most important and hotly disputed events of the American Civil War. For more than 150 years, historians have debated if George McClellan, commander of the Union Army of the Potomac, dawdled after receiving a copy of the orders before warily advancing to challenge Lee’s forces atop South Mountain.

In The Tale Untwisted, authors Gene Thorp and Alexander Rossino document in exhaustive fashion how “Little Mac” in fact moved with uncharacteristic energy to counter the Confederate threat and take advantage of Lee’s divided forces, seizing the initiative and striking a blow in the process that wrecked Lee’s plans and sent his army reeling back toward Virginia.

This study is a beautifully woven tour de force of primary research that may well be the final word on the debate over the fate and impact of the Lost Orders on the history of the 1862 Maryland Campaign.

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.

Dr. Alexander Rossino is an independent historian and author. He earned Master’s and Doctoral degrees in History at Syracuse University before working for nine years as a historian at the U.S. Holocaust Memorial Museum in Washington, D.C. Dr. Rossino turned his attention to the American Civil War in 2011 and after several years of research, he produced Six Days in September: A Novel of Lee's Army in Maryland, September 1862. The book proved to be popular among historians and enthusiasts alike, leading to a sequel titled The Guns of September: A Novel of McClellan's Army in Maryland, September 1862, which appeared in 2024.

Dr. Rossino also wrote Their Maryland: The Army of Northern Virginia from the Potomac Crossing to Sharpsburg in September 1862 (2021) and co-authored, with Gene Thorp, The Tale Untwisted: General George B. McClellan, The Maryland Campaign, and the Discovery of Lee's Lost Orders (2023). Both books challenge long-held beliefs about the 1862 Maryland Campaign and offer new insight into one of the Civil War’s most important periods.