- Lincoln's Pathfinder: John C. Frémont and the Violent Election of 1856
- America 1844: Religious Fervor, Westward Expansion, and the Presidential Election That Transformed the Nation
- The Pathfinder and the President: John C. Frémont, Abraham Lincoln, and the Battle for Emancipation
- The Dying Negro: A Poetical Epistle
- Appendix to Collier's Musical Travels Through England








