| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| This Emigrating Company: The 1844 Oregon Trail Journal of Jacob Hammer | 978-O-87O62-196-3 (O-87O62-196-3) | 1991 |
J. H. · J Hammer · Jacob Hammer Pedersen · Jacob Hammer Pederson · Jacob M. Hammer · Jacob Vibe Hammer · Jacob Vibe Hammer, Jon D. Reid Benjamin Perkins