- "My Own Two Feet:A Memoir" (2015)
- "Henry Hudson:The Man and the Myth" (2014)
- "America's Forgotten Explorer:William Clark and the Corps of Discovery" (2012)
- "Thomas Jefferson and the American Revolution:A Biography" (2010)
- "George Washington og vejen til uafhængighed" (2008)
- "John Adams and the Founding of America" (2006)
- "The American Revolution:A History" (2004)
Artikler og essays:
- "The Lewis and Clark Expedition:An Overview" (2003)
- "Slaget ved Yorktown:Et vendepunkt i den amerikanske revolution" (2001)
- "Thomas Jefferson:En mand med mange talenter" (1998)
- "The War of 1812:A Forgotten Conflict" (1996)
Noveller:
- "The Patriot" (2013)
- "Grænsemanden" (2012)
- "The Settler" (2011)
Digte:
- "America the Beautiful" (2010)
- "The Star-Spangled Banner" (2008)
- "My Country 'Tis of You" (2006)