| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Sacagawea: Journey into the West | 978-0-7368-6499-2 | 2006 |
| The Lewis And Clark Expedition | 978-0-7368-6493-0 | 2006 |
| The Triangle Shirtwaist Factory Fire | 978-0-7368-5483-2 | 2006 |
| Young Riders of the Pony Express | 978-0-7368-6883-9 | 2006 |