| Verfasser | Häufigkeit |
| Hammer, Georg Reichard 1635-1697 |
31 |
| Hammer, Richard |
23 |
| Hammer, Rolf |
10 |
| Hammer, Thomas R. |
9 |
| Hammer, Rainer |
7 |
| Hammer, Rudolf |
7 |
| Hammer, Raymond |
5 |
| Hammer, Robert |
5 |
| Hammer, Reuven 1933- |
4 |
| Hammer, Rhonda |
4 |
| Coughlin, Robert E. |
3 |
| Grafenhain, Werner |
3 |
| Gumpelzheimer, Johann Albert 1650-1685 |
3 |
| Hammer, Eliot R. |
3 |
| Hammer, Reinhard |
3 |
| Hammer, Ruby |
3 |
| Hammer, Rudolf Hans |
3 |
| Kelly, David 1950- |
3 |
| Remmelmann, Alexander |
3 |
| Gottschammel, Josef |
2 |