| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| American History From German Archives: With Reference to the German Soldiers in the Revolution and Franklin's Visit to Germany | 978-1-112-12419-8 (1-112-12419-5) | 2009 |
| Sources of History: A Paper Read Before the German-American Historical Society of New York and the Pionier-Verein of Philadelphia | 978-1-112-18304-1 (1-112-18304-3) | 2009 |
| The German Soldier in the Wars of the United States: -1886 | 978-1-112-12829-5 (1-112-12829-8) | 2009 |