| Verfasser | Häufigkeit |
| Parkhill, Forbes |
3 |
| Parkhill, Thomas |
2 |
| Asmussen, Brit |
1 |
| Beato, Affonso |
1 |
| Bernal, Gael Garcia |
1 |
| D'Arcy, James |
1 |
| Donaldson, James |
1 |
| McWilliam, Janette |
1 |
| Parkhill, Chad |
1 |
| Parkhill, D. F. |
1 |
| Parkhill, David |
1 |
| Parkhill, Douglas F. |
1 |
| Parkhill, Forbes 1892- |
1 |
| Parkhill, Matthew |
1 |
| Parkhill, Rick |
1 |
| Parkhill, Thomas C. |
1 |
| Rutkowski, Anthony M. |
1 |
| Santee, Ross 1889-1965 |
1 |
| Verbeke, Natalia |
1 |
| Weitzen, H. Skip |
1 |