Matt Spruill is a retired U. S. Army colonel and Civil War historian and lecturer. A former Gettysburg licensed battlefield guide he is the author of seven previously Civil War books including most recently Decisions at Gettysburg: The Nineteen Critical Decisions That Defined the Campaign and Winter Lightning: A Guide to the Battle of Stones River, second edition.

Lee Spruill is a retired U. S. Army lieutenant colonel and a combat veteran of the campaign in Afghanistan. He is the author of two previous book, including most recently Winter Lightning: A Guide to the Battle of Stones River, second edition.