John T. Elliff earned a Ph.D. in political science at Harvard and taught at Barnard College and Brandeis University before serving for thirty years in the federal government. Today he writes and lectures on Lincoln and is a member of the Lincoln Group of the District of Columbia.

Lewis Gannett is a freelance writer and editor. He edited C. A. Tripp's The Intimate History of Abraham Lincoln (2005) and is a graduate student in American History at the University of Massachusetts.

Erika Holst is a curator of collections at the Springfield Art Association. She hold a master's degree from the Winterthur Program in Early American Culture through the University of Delaware. Her published works include Wicked Springfield: Crime, Corruption, and Scandal During the Lincoln Era (2010).

Dan Monroe is John C. Griswold Distinguished Professor of History and chair of the history department at Millikin University. His published works include (as co-author) Shapers of the Great Debate on the Civil War: A Biographical Dictionary (2005).

Gerald J. Prokopowicz is professor of history at East Carolina University. His published works include Did Lincoln Own Slaves? And Other Frequently Asked Questions about Abraham Lincoln (2008).

Adam I. P. Smith is a senior lecturer in American history at University College London. His published works include The American Civil War (2007) and No Party Now: Politics in the Civil War North (2006).