| title | ISBN-13 | year of publication |
|---|---|---|
| A Serpent's Tale: Discovering America's Ancient Mound Builders | 978-1-59416-263-3 | 2016 |
| Railroads of New Jersey: Fragments of the Past in the Garden State Landscape | 978-0-8117-3260-4 | 2006 |
| Railroads of Pennsylvania: Fragments of the Past in the Keystone Landscape | 978-0-8117-2622-1 | 2003 |
| The Storm Gathering: The Penn Family and the American Revolution | 978-0-271-00858-5 | 1992 |
Penn State University Press · Stackpole Books · Westholme Publishing