Bill W. · Bill Watson · Bill Whitcomb · Billy Watkins · William Watkins
Ruminator Books · Scarletta Press
| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| A Celtic Childhood | Hardcover | 978-1-886913-31-8 | 1999 |
| Celtic Childhood | Paperback | 978-1-886913-43-1 | 2000 |
| Scotland Is Not for the Squeamish | " | 978-1-886913-56-1 | 2003 |
| Scotland Is Not for the Squeamish | Hardcover | 978-1-886913-42-4 | 2000 |
| The Once and Future Celt | Paperback | 978-0-9765201-9-1 | 2008 |