G.B. · G. Butler · Gerald B. · Gerald W. Butler
Arcadia Publishing · Barnes & Noble
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Mayan Prophecies 2012 | 978-1-4351-3893-3 (1-4351-3893-7) | 2012 |
| The Military History of Boston's Harbor Islands | 978-0-7385-0464-3 (0-7385-0464-5) | 2000 |