| title | ISBN-13 | year of publication |
|---|---|---|
| Astronomy for Schools and General Readers | 978-1-112-23740-9 | 2009 |
| Political Leaders of Provincial Pennsylvania: -1919 | 978-1-112-14444-8 | 2009 |
| Quakerism and Politics: Essays | 978-1-112-17704-0 | 2009 |
| Two Centuries of Pennsylvania History | 978-1-112-58976-8 | 2010 |