| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1988 | 978-1-871443-01-1 | Heather Hobden · Mervyn Hobden | John Harrison and the Problem of Longitude |
| 1989 | 978-1-871443-02-8 | '' | John Harrison and the Problem of Longitude |
| 2001 | 978-1-871443-30-1 | Heather Hobden | Tudor Bastard: King Henry VIII's Son, Henry Fitzroy, Duke of Richmond and Somerset and His Mother, Elizabeth Blount |