Jack Duane Warren, Jr., author of Freedom: The Enduring Importance of the American Revolution, is a native of Washington, D.C., whose work focuses on the enduring achievements of the American Revolution. He attended the University of Mississippi and Brown University. He is married to his wife, Janet, and they have three grown children. He has been studying and reflecting on American history since he learned to read. He considers himself a historian of American public life—much more than just politics and governance.

Jack Warren has been actively involved in historic preservation and in how the places we preserve are presented. He was one of the leaders in the successful effort to preserve the site of George Washington's childhood home from development to securing its designation as a National Historic Landmark. He also helped preserve the house where Washington lived in Barbados and was involved in the successful effort to save a large and critical part of the Princeton battlefield, including the land over which Washington personally led the charge that resulted in his first great battlefield victory over British troops.

During the summer of 2020, he sat beside a statue of George Washington to talk to protestors about why we have honored Washington and ought to honor him still—Washington challenged a world that was grotesquely unfree and laid the foundations of free society—while protecting the statue from vandalization.