| Verfasser | Häufigkeit |
|---|---|
| Wilgus, Horace La Fayette | 4 |
| Wilgus, Mary H. | 3 |
| Block, Daniel | 1 |
| Carroll R., M. Daniel | 1 |
| Carroll, M. | 1 |
| Dallaire, Hélène | 1 |
| Firth, David | 1 |
| Kissling, Paul | 1 |
| Martens, Elmer | 1 |
| Thomas, Heath 1975- | 1 |
| Wilgus, Horace La Fayette 1859-1935 | 1 |
| Wilgus, J. | 1 |