Secondary Source: Seth Rockman, “Liberty Is Land and Slaves: The Great Contradiction,” OAH Magazine of History 19, 3 (May 2005): 8–11

Secondary Source: Donna J. Rilling, “Liberty Is Innovation: Sources of Energy and Enterprise,” OAH Magazine of History 19, 3 (May 2005): 12–15

Secondary Source: Craig Thompson Friend, “Liberty Is Pioneering: An American Birthright,” OAH Magazine of History 19, 3 (May 2005): 16–20

Secondary Source: Barbara M. Tucker, “Liberty Is Exploitation: The Force of Tradition in Early Manufacturing,” OAH Magazine of History 19, 3 (May 2005): 21–24