Includes authors with at least 6 novels, short fiction, poems or collections:
| Debut Year | Author | Number of Titles |
|---|---|---|
| 1906 | Raymond MacDonald Alden | 24 |
| 1906 | James Blyth | 8 |
| 1906 | Charles Weathers Bump | 13 |
| 1906 | Ronald Firbank | 7 |
| 1906 | Robert Frost | 21 |
| 1906 | Zona Gale | 24 |
| 1906 | Elizabeth Grierson | 33 |
| 1906 | W. Holt-White | 6 |
| 1906 | Louise Seymour Houghton | 8 |
| 1906 | Jeanie Lang | 24 |
| 1906 | Captain W. F. O'Connor | 8 |
| 1906 | Giovanni Papini | 10 |
| 1906 | Clive Pemberton | 12 |
| 1906 | Howard Dwight Smiley | 6 |
| 1906 | Nora Archibald Smith | 13 |
| 1906 | Mary Heaton Vorse | 8 |