Victoria Bynum, author of The Long Shadow of the Civil War: Southern Dissent and Its Legacies and the book that inspired the movie "Free State of Jones."

David Mowery, Morgan's Great Raid: The Remarkable Expedition from Kentucky to Ohio

James Huffstodt, Lincoln's Bold Lion: The Life and Times of Brigadier General Martin Davis Hardin.

Debra Reddin Van Tuyll, The Confederate Press in the Crucible of the American Civil War.

Mark Dunkelman, Patrick Henry Jones: Irish American, Civil War General, and Gilded Age Politician

Cathy Wright, curator at The American Civil War Museum in Richmond, Virginia.

Lorien Foote, The Gentlemen and the Roughs: Violence, Honor, and Manhood in the Union Army

Stephen Davis, A Long and Bloody Task: The Atlanta Campaign from Dalton through Kennesaw to the Chattahoochee, May 5-July 18, 1864

Manisha Sinha, The Slaves' Cause: A History of Abolition.

Garry Adelman, Director of History and Education at the Civil War Trust.