| Author | Popularity |
| Clark, R. E. D. |
3 |
| Stephen Bailey |
3 |
| Andrew M. Jones |
2 |
| Anni Vanhatalo |
2 |
| Brad W. Wilkins |
2 |
| Brett S. Kirby |
2 |
| Brown, Emily Clark |
2 |
| Christopher Thompson |
2 |
| Clark-Kennedy, A. E. |
2 |
| Ida E. Clark |
2 |
| Lee J. Wylie |
2 |
| A Aloui |
1 |
| A Ammar |
1 |
| A Andreeva |
1 |
| A Braakman-Jansen |
1 |
| A Dietrich |
1 |
| A Gaggioli |
1 |
| A Heathcote |
1 |
| A Hoekelmann |
1 |
| A Jerg |
1 |
| A Khacharem |
1 |
| AB Adler |
1 |
| AJ Tucker |
1 |
| AM Lane |
1 |
| AM Williams |
1 |
| Aaron C. Clark |
1 |
| B Bouaziz |
1 |
| B Šimunič |
1 |
| BL Riemann |
1 |
| Beach, L. R. |
1 |
| Becker, Edwin D. |
1 |
| Bryant, Edward Clark |
1 |
| C Apfelbacher |
1 |
| C Harper |
1 |
| C MacMahon |
1 |
| C Meijen |
1 |
| C Ruiz |
1 |
| C Sobrino |
1 |
| C Wrede |
1 |
| CCT Clark |
1 |
| CS Pernambuco |
1 |
| Cedric E Attias |
1 |
| Charlotte Joseph |
1 |
| Clark Dickerson |
1 |
| Clark, C. E. F. |
1 |
| Clark, D. |
1 |
| Clark, E. L. |
1 |
| Clark, J. Desmond (John Desmond), 1916- |
1 |
| Clark, John W. (John William) |
1 |
| Clark, K. E. |
1 |