A Short History of the Department of State
- 1861–1865: The Civil War and International Diplomacy
- Preventing Diplomatic Recognition of the Confederacy, 1861–1865
- The Blockade of Confederate Ports, 1861–1865
- The Trent Affair, 1861
- French Intervention in Mexico and the American Civil War, 1862–1867
- The Alabama Claims, 1862–1872
- The Consequences of Union Victory, 1865